Jovanović, Aleksandra

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Authority KeyName Variants
orcid::0000-0001-5394-0125
  • Jovanović, Aleksandra (22)
  • Jovanović, Aleksandra A. (19)
Projects
Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200287 (Innovation Center of the Faculty of Technology and Metallurgy)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200003 (Institute for Medicinal Plant Research 'Dr. Josif Pančić ', Belgrade) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy)
Traditional and new products of cultivated and wild growing fruits and grape vines, and by-products durring processing, with special emphasis on indigenous varieties: chemical characterization and biological profile Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200019 (University of Belgrade, Institute for the Application of Nuclear Energy - INEP)
bilateral project Serbia bilateral project Slovenia
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200113 (Univeristy of Niš, Faculty of Medicine)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200116 (University of Belgrade, Faculty of Agriculture) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200168 (University of Belgrade, Faculty of Chemistry)
CherrySeRB - Genetic potential of Serbian autochthonous cherry genotypes for temperature-adaptable reproductive behaviour and nutraceutical value FUNPRO - Functional products based on goat's milk proteins and bioactive compounds extracted from grape pomace and edible mushrooms
MultiPromis - Multifunctional leaf protein and assembled nanocarrier structures delivered by enzyme technology Ministry of Science, Technological Development, and Innovation of the Republic of Serbia (#Grant Nos: 451-03-1202/2021-09/3)
Slovenian Research AgencySlovenian Research Agency - Slovenia [P4-0121] The bilateral project between Serbia and Slovenia named ”Biopolymer-coated liposomes as novel delivery systems for natural phenolic compound”.

Author's Bibliography

Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia

Batinić, Petar; Jovanović, Aleksandra; Stojković, Dejan; Zengin, Gökhan; Cvijetić, Ilija; Gašić, Uroš; Čutović, Natalija; Pešić, Mirjana B.; Milinčić, Danijel D.; Carević, Tamara; Marinković, Aleksandar; Bugarski, Branko; Marković, Tatjana

(MDPI, 2024)

TY  - JOUR
AU  - Batinić, Petar
AU  - Jovanović, Aleksandra
AU  - Stojković, Dejan
AU  - Zengin, Gökhan
AU  - Cvijetić, Ilija
AU  - Gašić, Uroš
AU  - Čutović, Natalija
AU  - Pešić, Mirjana B.
AU  - Milinčić, Danijel D.
AU  - Carević, Tamara
AU  - Marinković, Aleksandar
AU  - Bugarski, Branko
AU  - Marković, Tatjana
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7457
AB  - Without being aware of their chemical composition, many cultures have used herbaceous peony roots for medicinal purposes. Modern phytopreparations intended for use in human therapy require specific knowledge about the chemistry of peony roots and their biological activities. In this study, ethanol–water extracts were prepared by maceration and microwave- and ultrasound-assisted extractions (MAE and UAE, respectively) in order to obtain bioactive molecules from the roots of Paeonia tenuifolia L., Paeonia peregrina Mill., and Paeonia officinalis L. wild growing in Serbia. Chemical characterization; polyphenol and flavonoid content; antioxidant, multianti-enzymatic, and antibacterial activities of extracts; and in vitro gastrointestinal digestion (GID) of hot water extracts were performed. The strongest anti-cholinesterase activity was observed in PT extracts. The highest anti-ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical potential was observed in PP extracts, whereas against DPPH (2,2-diphenyl-1-picrylhydrazyl radicals), the best results were achieved with PO extracts. Regarding antibacterial activity, extracts were strongly potent against Bacillus cereus. A molecular docking simulation was conducted to gather insights into the binding affinity and interactions of polyphenols and other Paeonia-specific molecules in the active sites of tested enzymes. In vitro GID of Paeonia teas showed a different recovery and behavior of the individual bioactives, with an increased recovery of methyl gallate and digallate and a decreased recovery of paeoniflorin and its derivatives. PT (Gulenovci) and PP (Pirot) extracts obtained by UAE and M were more efficient in the majority of the bioactivity assays. This study represents an initial step toward the possible application of Paeonia root extracts in pharmacy, medicine, and food technologies.
PB  - MDPI
T2  - Pharmaceuticals
T1  - Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia
IS  - 4
SP  - 518
VL  - 17
DO  - 10.3390/ph17040518
ER  - 
@article{
author = "Batinić, Petar and Jovanović, Aleksandra and Stojković, Dejan and Zengin, Gökhan and Cvijetić, Ilija and Gašić, Uroš and Čutović, Natalija and Pešić, Mirjana B. and Milinčić, Danijel D. and Carević, Tamara and Marinković, Aleksandar and Bugarski, Branko and Marković, Tatjana",
year = "2024",
abstract = "Without being aware of their chemical composition, many cultures have used herbaceous peony roots for medicinal purposes. Modern phytopreparations intended for use in human therapy require specific knowledge about the chemistry of peony roots and their biological activities. In this study, ethanol–water extracts were prepared by maceration and microwave- and ultrasound-assisted extractions (MAE and UAE, respectively) in order to obtain bioactive molecules from the roots of Paeonia tenuifolia L., Paeonia peregrina Mill., and Paeonia officinalis L. wild growing in Serbia. Chemical characterization; polyphenol and flavonoid content; antioxidant, multianti-enzymatic, and antibacterial activities of extracts; and in vitro gastrointestinal digestion (GID) of hot water extracts were performed. The strongest anti-cholinesterase activity was observed in PT extracts. The highest anti-ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical potential was observed in PP extracts, whereas against DPPH (2,2-diphenyl-1-picrylhydrazyl radicals), the best results were achieved with PO extracts. Regarding antibacterial activity, extracts were strongly potent against Bacillus cereus. A molecular docking simulation was conducted to gather insights into the binding affinity and interactions of polyphenols and other Paeonia-specific molecules in the active sites of tested enzymes. In vitro GID of Paeonia teas showed a different recovery and behavior of the individual bioactives, with an increased recovery of methyl gallate and digallate and a decreased recovery of paeoniflorin and its derivatives. PT (Gulenovci) and PP (Pirot) extracts obtained by UAE and M were more efficient in the majority of the bioactivity assays. This study represents an initial step toward the possible application of Paeonia root extracts in pharmacy, medicine, and food technologies.",
publisher = "MDPI",
journal = "Pharmaceuticals",
title = "Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia",
number = "4",
pages = "518",
volume = "17",
doi = "10.3390/ph17040518"
}
Batinić, P., Jovanović, A., Stojković, D., Zengin, G., Cvijetić, I., Gašić, U., Čutović, N., Pešić, M. B., Milinčić, D. D., Carević, T., Marinković, A., Bugarski, B.,& Marković, T.. (2024). Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia. in Pharmaceuticals
MDPI., 17(4), 518.
https://doi.org/10.3390/ph17040518
Batinić P, Jovanović A, Stojković D, Zengin G, Cvijetić I, Gašić U, Čutović N, Pešić MB, Milinčić DD, Carević T, Marinković A, Bugarski B, Marković T. Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia. in Pharmaceuticals. 2024;17(4):518.
doi:10.3390/ph17040518 .
Batinić, Petar, Jovanović, Aleksandra, Stojković, Dejan, Zengin, Gökhan, Cvijetić, Ilija, Gašić, Uroš, Čutović, Natalija, Pešić, Mirjana B., Milinčić, Danijel D., Carević, Tamara, Marinković, Aleksandar, Bugarski, Branko, Marković, Tatjana, "Phytochemical Analysis, Biological Activities, and Molecular Docking Studies of Root Extracts from Paeonia Species in Serbia" in Pharmaceuticals, 17, no. 4 (2024):518,
https://doi.org/10.3390/ph17040518 . .

COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES

Jovanović, Aleksandra; Volić, Mina; Obradović, Nataša; Bugarski, Branko

(Novi Sad : Faculty of Technology, 2023)

TY  - CONF
AU  - Jovanović, Aleksandra
AU  - Volić, Mina
AU  - Obradović, Nataša
AU  - Bugarski, Branko
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6452
AB  - Polyphenol recovery and physico-chemical properties of the extracts depend on the type of
solvents and their pH values. Additionally, due to the presence of different biologically active
compounds in plant waste, plant extracts obtained from industrial by-processing can find
potential applications in various products. In the present study, Serpylli herba waste extracts
were prepared using maceration (60 min), a solid-to-solvent ratio of 1:30, the particle size of
plant waste 0.3 mm, and two types of the extraction medium: 50% ethanol (pH 6) and 50%
ethanol with glacial acetic acid (pH 2.5). The lyophilization process was chosen as the next
step (-75°C, 0.011 mbar, for 24 h). Comparison of liquid and lyophilized extracts prepared at
different pH values was done via analyzing total polyphenol content (TPC, Folin-Ciocalteu
method), total flavonoid content (TFC, colorimetric assay), antioxidant capacity (ABTS and
DPPH assays), zeta potential, and conductivity (photon correlation spectroscopy). TPC of
liquid extracts prepared at pH 2.5 and pH 6 amounted to 1.38 and 1.23 mg GAE/mL,
respectively, while lyophilized parallels had 271.7 and 188.8 mg GAE/g, respectively. The
same trend is noticed in the case of TFC: 0.368 and 0.334 mg CE/mL for liquid extracts
obtained at pH 2.5 and pH 6, respectively, and 102.5 and 99.7 mg CE/mL for lyophilized
parallels. ABTS radical scavenging activity of the liquid extracts at pH 2.5 and pH 6 was
0.767 and 0.750 mmol TE/L, respectively and for the lyophilized parallels was 0.136 and
0.111 mmol TE/g. IC50 (concentration for neutralization of 50% of DPPH free radicals) was
1.12 and 1.75 mg/mL for the liquid extracts prepared at pH 2.5 and pH 6, respectively and
0.331 and 0.391 mg/mL for the lyophilized parallels. The zeta potential of the liquid extracts
at pH 2.5 and pH 6 was 1.74 and -2.56 mV, respectively, whereas the zeta potential of
lyophilized parallels was -3.55 and -18.7 mV. Conductivity of the liquid extracts was 0.864(pH 2.5) and 0.423 mS/cm (pH 6), whereas for the lyophilized extracts it was 0.199 (pH 2.5)
and 0.452 mS/cm (pH 6). The presented results provide the information on physico-chemical
properties of Serpylli herba waste liquid and lyophilized extracts that can add value and
improve the quality of the existing food, functional food, pharmaceutical and cosmetic
products, as well as for drinking water and wastewater treatment.
PB  - Novi Sad : Faculty of Technology
C3  - Proceedings of the 2nd International Conference on Advanced Production and Processing ICAPP 2022, Novi Sad
T1  - COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES
EP  - 175
SP  - 166
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6452
ER  - 
@conference{
author = "Jovanović, Aleksandra and Volić, Mina and Obradović, Nataša and Bugarski, Branko",
year = "2023",
abstract = "Polyphenol recovery and physico-chemical properties of the extracts depend on the type of
solvents and their pH values. Additionally, due to the presence of different biologically active
compounds in plant waste, plant extracts obtained from industrial by-processing can find
potential applications in various products. In the present study, Serpylli herba waste extracts
were prepared using maceration (60 min), a solid-to-solvent ratio of 1:30, the particle size of
plant waste 0.3 mm, and two types of the extraction medium: 50% ethanol (pH 6) and 50%
ethanol with glacial acetic acid (pH 2.5). The lyophilization process was chosen as the next
step (-75°C, 0.011 mbar, for 24 h). Comparison of liquid and lyophilized extracts prepared at
different pH values was done via analyzing total polyphenol content (TPC, Folin-Ciocalteu
method), total flavonoid content (TFC, colorimetric assay), antioxidant capacity (ABTS and
DPPH assays), zeta potential, and conductivity (photon correlation spectroscopy). TPC of
liquid extracts prepared at pH 2.5 and pH 6 amounted to 1.38 and 1.23 mg GAE/mL,
respectively, while lyophilized parallels had 271.7 and 188.8 mg GAE/g, respectively. The
same trend is noticed in the case of TFC: 0.368 and 0.334 mg CE/mL for liquid extracts
obtained at pH 2.5 and pH 6, respectively, and 102.5 and 99.7 mg CE/mL for lyophilized
parallels. ABTS radical scavenging activity of the liquid extracts at pH 2.5 and pH 6 was
0.767 and 0.750 mmol TE/L, respectively and for the lyophilized parallels was 0.136 and
0.111 mmol TE/g. IC50 (concentration for neutralization of 50% of DPPH free radicals) was
1.12 and 1.75 mg/mL for the liquid extracts prepared at pH 2.5 and pH 6, respectively and
0.331 and 0.391 mg/mL for the lyophilized parallels. The zeta potential of the liquid extracts
at pH 2.5 and pH 6 was 1.74 and -2.56 mV, respectively, whereas the zeta potential of
lyophilized parallels was -3.55 and -18.7 mV. Conductivity of the liquid extracts was 0.864(pH 2.5) and 0.423 mS/cm (pH 6), whereas for the lyophilized extracts it was 0.199 (pH 2.5)
and 0.452 mS/cm (pH 6). The presented results provide the information on physico-chemical
properties of Serpylli herba waste liquid and lyophilized extracts that can add value and
improve the quality of the existing food, functional food, pharmaceutical and cosmetic
products, as well as for drinking water and wastewater treatment.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Proceedings of the 2nd International Conference on Advanced Production and Processing ICAPP 2022, Novi Sad",
title = "COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES",
pages = "175-166",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6452"
}
Jovanović, A., Volić, M., Obradović, N.,& Bugarski, B.. (2023). COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES. in Proceedings of the 2nd International Conference on Advanced Production and Processing ICAPP 2022, Novi Sad
Novi Sad : Faculty of Technology., 166-175.
https://hdl.handle.net/21.15107/rcub_technorep_6452
Jovanović A, Volić M, Obradović N, Bugarski B. COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES. in Proceedings of the 2nd International Conference on Advanced Production and Processing ICAPP 2022, Novi Sad. 2023;:166-175.
https://hdl.handle.net/21.15107/rcub_technorep_6452 .
Jovanović, Aleksandra, Volić, Mina, Obradović, Nataša, Bugarski, Branko, "COMPARISON OF LIQUID AND LYOPHILIZED SERPYLLI HERBA WASTE EXTRACTS PREPARED AT DIFFERENT pH VALUES" in Proceedings of the 2nd International Conference on Advanced Production and Processing ICAPP 2022, Novi Sad (2023):166-175,
https://hdl.handle.net/21.15107/rcub_technorep_6452 .

The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts

Jovanović, Aleksandra A.; Petrović, Predrag; Volić, Mina; Obradović, Nataša; Balanč, Bojana; Pravilović, Radoslava; Bugarski, Branko

(University in Banjaluka, Faculty of Technology, 2023)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Petrović, Predrag
AU  - Volić, Mina
AU  - Obradović, Nataša
AU  - Balanč, Bojana
AU  - Pravilović, Radoslava
AU  - Bugarski, Branko
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6076
AB  - In the present study, Serpylli herba's waste extracts were prepared using 50% ethanol (pH 6) and 50%
ethanol with hydrochloric acid (pH 1.2), using maceration (25 °C) and heat-assisted extraction (HAE,
80 °C). The best extraction conditions were determined via analyzing total polyphenol (TPC) and
flavonoid contents (TFC), antioxidant capacity, extraction yield, zeta potential, density, and surface
tension. In maceration and HAE, TPC were 1.18±0.06 and 1.43±0.05 mg GAE/mL (pH 6), and
0.69±0.05 and 0.86±0.02 mg GAE/mL (pH 1.2). The same trend is noticed in the case of TFC:
0.33±0.01 and 0.42±0.02 mg CE/mL (pH 6) and 0.24±0.01 and 0.27±0.01 mg CE/mL (pH 1.2). ABTS
radical scavenging activity was 775.0±3.5 and 623.8±5.1 mmol Trolox/mL (pH 6), and 269.2±3.1
and 327.9±7.7 mmol Trolox/mL (pH 1.2). In DPPH assay, IC50 was 1.64±0.04 and 1.48±0.03 mg/mL
(pH 6), and 7.59±0.07 and 5.11±0.09 mg/mL (pH 1.2). Extraction yield was 0.541±0.049 and
0.583±0.019% (pH 6), and 0.938±0.057 and 0.889±0.060% (pH 1.2). Zeta potential was -2.58±0.02
and -2.08±0.10 mV (pH 6), and 1.49±0.37 and 1.08±0.09 mV (pH 1.2). Density was 0.945±0.001
and 0.949±0.001 g/mL (pH 6), and 1.008±0.001 and 1.010±0.001 g/mL (pH 1.2). Surface tension
was 29.2±0.3 and 30.5±1.0 mN/m (pH 6), and 32.6±2.3 and 36.5±2.3 mN/m (pH 1.2). The best
properties were determined in the extract obtained in HAE at pH 6. The aim of this study is to provide
evidence of the physico-chemical properties of Serpylli herba's waste extracts that can add value and
improve the quality of existing food, pharmaceutical, and cosmetic products.
PB  - University in Banjaluka, Faculty of Technology
C3  - XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND
ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
BOOK OF PROCEEDINGS, OCTOBER 21-22, 2022, BANJA LUKA
T1  - The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts
EP  - 104
SP  - 96
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6076
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Petrović, Predrag and Volić, Mina and Obradović, Nataša and Balanč, Bojana and Pravilović, Radoslava and Bugarski, Branko",
year = "2023",
abstract = "In the present study, Serpylli herba's waste extracts were prepared using 50% ethanol (pH 6) and 50%
ethanol with hydrochloric acid (pH 1.2), using maceration (25 °C) and heat-assisted extraction (HAE,
80 °C). The best extraction conditions were determined via analyzing total polyphenol (TPC) and
flavonoid contents (TFC), antioxidant capacity, extraction yield, zeta potential, density, and surface
tension. In maceration and HAE, TPC were 1.18±0.06 and 1.43±0.05 mg GAE/mL (pH 6), and
0.69±0.05 and 0.86±0.02 mg GAE/mL (pH 1.2). The same trend is noticed in the case of TFC:
0.33±0.01 and 0.42±0.02 mg CE/mL (pH 6) and 0.24±0.01 and 0.27±0.01 mg CE/mL (pH 1.2). ABTS
radical scavenging activity was 775.0±3.5 and 623.8±5.1 mmol Trolox/mL (pH 6), and 269.2±3.1
and 327.9±7.7 mmol Trolox/mL (pH 1.2). In DPPH assay, IC50 was 1.64±0.04 and 1.48±0.03 mg/mL
(pH 6), and 7.59±0.07 and 5.11±0.09 mg/mL (pH 1.2). Extraction yield was 0.541±0.049 and
0.583±0.019% (pH 6), and 0.938±0.057 and 0.889±0.060% (pH 1.2). Zeta potential was -2.58±0.02
and -2.08±0.10 mV (pH 6), and 1.49±0.37 and 1.08±0.09 mV (pH 1.2). Density was 0.945±0.001
and 0.949±0.001 g/mL (pH 6), and 1.008±0.001 and 1.010±0.001 g/mL (pH 1.2). Surface tension
was 29.2±0.3 and 30.5±1.0 mN/m (pH 6), and 32.6±2.3 and 36.5±2.3 mN/m (pH 1.2). The best
properties were determined in the extract obtained in HAE at pH 6. The aim of this study is to provide
evidence of the physico-chemical properties of Serpylli herba's waste extracts that can add value and
improve the quality of existing food, pharmaceutical, and cosmetic products.",
publisher = "University in Banjaluka, Faculty of Technology",
journal = "XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND
ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
BOOK OF PROCEEDINGS, OCTOBER 21-22, 2022, BANJA LUKA",
title = "The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts",
pages = "104-96",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6076"
}
Jovanović, A. A., Petrović, P., Volić, M., Obradović, N., Balanč, B., Pravilović, R.,& Bugarski, B.. (2023). The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND
ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
BOOK OF PROCEEDINGS, OCTOBER 21-22, 2022, BANJA LUKA
University in Banjaluka, Faculty of Technology., 96-104.
https://hdl.handle.net/21.15107/rcub_technorep_6076
Jovanović AA, Petrović P, Volić M, Obradović N, Balanč B, Pravilović R, Bugarski B. The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND
ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
BOOK OF PROCEEDINGS, OCTOBER 21-22, 2022, BANJA LUKA. 2023;:96-104.
https://hdl.handle.net/21.15107/rcub_technorep_6076 .
Jovanović, Aleksandra A., Petrović, Predrag, Volić, Mina, Obradović, Nataša, Balanč, Bojana, Pravilović, Radoslava, Bugarski, Branko, "The impact of pH value and temperature on polyphenol recovery, antioxidant capacity and physical properties of Serpylli herba's waste extracts" in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND
ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA
BOOK OF PROCEEDINGS, OCTOBER 21-22, 2022, BANJA LUKA (2023):96-104,
https://hdl.handle.net/21.15107/rcub_technorep_6076 .

Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages

Obradović, Nataša; Volić, Mina; Jovanović, Aleksandra; Krunić, Tanja; Nedović, Viktor; Rakin, Marica; Bugarski, Branko

(Novi Sad : Faculty of Technology, 2022)

TY  - CONF
AU  - Obradović, Nataša
AU  - Volić, Mina
AU  - Jovanović, Aleksandra
AU  - Krunić, Tanja
AU  - Nedović, Viktor
AU  - Rakin, Marica
AU  - Bugarski, Branko
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6446
AB  - Starter cultures are essential components of fermented foods with the potential to enhance
preservation, improve nutritional quality, and modify the sensory qualities of the products. The
study characterized the microcarriers with the probiotic starter culture which could be used for
the preparation of functional whey-based products. The culture was encapsulated using the
spray-drying technique and implemented in the whey-based medium. The protective effect of
alginate-whey carriers on the microencapsulated dairy starter culture (Lactoferm ABY 6)
during the spray-drying, fermentation, and storage time were analyzed. The production yield,
encapsulation efficiency, solubility, particle size, and moisture content were determined after
the microencapsulation process. The SEM analysis was used for the characterization of powder
and carrier surface morphology. The encapsulation efficiency and powder solubility were
75,8±0,09 % and 86,0±1,62 %, respectively. The cell viability in the powders and beverages
was monitored for 28 days. The results showed that the microencapsulation process improved
cell viability (> 9,08 log10CFU/mL) during the fermentation process. Moreover,
microencapsulated probiotic cells have a higher survival rate in beverages in comparison with
free cells in storage time. The application of this type of encapsulation technique showed
potential regarding cell preservation in the production and storage of functional beverages.
PB  - Novi Sad : Faculty of Technology
C3  - Book of abstracts / 2nd International Conference on Advanced Production and Processing, 20th-22nd October 2022, Novi Sad
T1  - Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages
SP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6446
ER  - 
@conference{
author = "Obradović, Nataša and Volić, Mina and Jovanović, Aleksandra and Krunić, Tanja and Nedović, Viktor and Rakin, Marica and Bugarski, Branko",
year = "2022",
abstract = "Starter cultures are essential components of fermented foods with the potential to enhance
preservation, improve nutritional quality, and modify the sensory qualities of the products. The
study characterized the microcarriers with the probiotic starter culture which could be used for
the preparation of functional whey-based products. The culture was encapsulated using the
spray-drying technique and implemented in the whey-based medium. The protective effect of
alginate-whey carriers on the microencapsulated dairy starter culture (Lactoferm ABY 6)
during the spray-drying, fermentation, and storage time were analyzed. The production yield,
encapsulation efficiency, solubility, particle size, and moisture content were determined after
the microencapsulation process. The SEM analysis was used for the characterization of powder
and carrier surface morphology. The encapsulation efficiency and powder solubility were
75,8±0,09 % and 86,0±1,62 %, respectively. The cell viability in the powders and beverages
was monitored for 28 days. The results showed that the microencapsulation process improved
cell viability (> 9,08 log10CFU/mL) during the fermentation process. Moreover,
microencapsulated probiotic cells have a higher survival rate in beverages in comparison with
free cells in storage time. The application of this type of encapsulation technique showed
potential regarding cell preservation in the production and storage of functional beverages.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Book of abstracts / 2nd International Conference on Advanced Production and Processing, 20th-22nd October 2022, Novi Sad",
title = "Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages",
pages = "35",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6446"
}
Obradović, N., Volić, M., Jovanović, A., Krunić, T., Nedović, V., Rakin, M.,& Bugarski, B.. (2022). Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages. in Book of abstracts / 2nd International Conference on Advanced Production and Processing, 20th-22nd October 2022, Novi Sad
Novi Sad : Faculty of Technology., 35.
https://hdl.handle.net/21.15107/rcub_technorep_6446
Obradović N, Volić M, Jovanović A, Krunić T, Nedović V, Rakin M, Bugarski B. Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages. in Book of abstracts / 2nd International Conference on Advanced Production and Processing, 20th-22nd October 2022, Novi Sad. 2022;:35.
https://hdl.handle.net/21.15107/rcub_technorep_6446 .
Obradović, Nataša, Volić, Mina, Jovanović, Aleksandra, Krunić, Tanja, Nedović, Viktor, Rakin, Marica, Bugarski, Branko, "Design and characterization of spray-dried microcarriers for preparation of functional wheybased beverages" in Book of abstracts / 2nd International Conference on Advanced Production and Processing, 20th-22nd October 2022, Novi Sad (2022):35,
https://hdl.handle.net/21.15107/rcub_technorep_6446 .

Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract

Jovanović, Aleksandra A.; Vajić, Una-Jovana V.; Mijin, Dušan Ž.; Zdunić, Gordana M.; Šavikin, Katarina P.; Branković, Suzana; Kitić, Dušanka; Bugarski, Branko M.

(Elsevier GmbH, 2022)

TY  - JOUR
AU  - Jovanović, Aleksandra A.
AU  - Vajić, Una-Jovana V.
AU  - Mijin, Dušan Ž.
AU  - Zdunić, Gordana M.
AU  - Šavikin, Katarina P.
AU  - Branković, Suzana
AU  - Kitić, Dušanka
AU  - Bugarski, Branko M.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5194
AB  - In the present study, polyphenol extraction from Thymus serpyllum by-product (herbal dust) in microwave reactor was optimized through varying extraction time, ethanol concentration and solid-to-solvent ratiovia determination of total polyphenol and flavonoid contents, and antioxidant activity, using response surface methodology and a central composite design. Total polyphenol and flavonoids contents, as well as antioxidant activity of the extracts were statistically significantly affected by ethanol concentration and solid-to-solvent ratio. However, extraction time had statistically significant influence only on polyphenol yield. The extraction conditions that maximized polyphenol recovery were 48% ethanol and 0.0402 g/mL solid-to-solvent ratio during 86 s of microwave-assisted extraction, and under these conditions total polyphenol content was estimated to be 57.2 mg of gallic acid equivalents (GAE)/L, while measured value was 58.1 ± 3.2 mg GAE/L. Polyphenol content (HPLC analysis), antioxidant, antimicrobial and antispasmodic potential of the extract prepared under these optimal extraction conditions were evaluated. Rosmarinic acids, luteolin 7-O-glucuronide, caffeic acid, apigenin glucuronide, 6-hydroxyluteolin 7-O-glucoside, 6,8-di-C-glucosylapigenin, and traces of chlorogenic acid were quantified in the extract (descending order of content). The selected extract inhibited 95% ± 0.9 of lipid peroxidation in β-Carotene and linoleic acid emulsion. It was more effective against tested Gram-positive bacteria than against Gram-negative and showed dose-dependent antispasmodic activity on spontaneous contractions, acetylcholine- and potassium chloride-induced contractions. Microwave-assisted extraction could be selected as a successful technique for polyphenol extraction from wild thyme by-product. Biological activities shown in the study open the possibility of potential application of the extract in pharmaceutical, food, functional food and cosmetic products
PB  - Elsevier GmbH
T2  - Journal of Applied Research on Medicinal and Aromatic Plants
T1  - Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract
SP  - 100417
VL  - 31
DO  - 10.1016/j.jarmap.2022.100417
ER  - 
@article{
author = "Jovanović, Aleksandra A. and Vajić, Una-Jovana V. and Mijin, Dušan Ž. and Zdunić, Gordana M. and Šavikin, Katarina P. and Branković, Suzana and Kitić, Dušanka and Bugarski, Branko M.",
year = "2022",
abstract = "In the present study, polyphenol extraction from Thymus serpyllum by-product (herbal dust) in microwave reactor was optimized through varying extraction time, ethanol concentration and solid-to-solvent ratiovia determination of total polyphenol and flavonoid contents, and antioxidant activity, using response surface methodology and a central composite design. Total polyphenol and flavonoids contents, as well as antioxidant activity of the extracts were statistically significantly affected by ethanol concentration and solid-to-solvent ratio. However, extraction time had statistically significant influence only on polyphenol yield. The extraction conditions that maximized polyphenol recovery were 48% ethanol and 0.0402 g/mL solid-to-solvent ratio during 86 s of microwave-assisted extraction, and under these conditions total polyphenol content was estimated to be 57.2 mg of gallic acid equivalents (GAE)/L, while measured value was 58.1 ± 3.2 mg GAE/L. Polyphenol content (HPLC analysis), antioxidant, antimicrobial and antispasmodic potential of the extract prepared under these optimal extraction conditions were evaluated. Rosmarinic acids, luteolin 7-O-glucuronide, caffeic acid, apigenin glucuronide, 6-hydroxyluteolin 7-O-glucoside, 6,8-di-C-glucosylapigenin, and traces of chlorogenic acid were quantified in the extract (descending order of content). The selected extract inhibited 95% ± 0.9 of lipid peroxidation in β-Carotene and linoleic acid emulsion. It was more effective against tested Gram-positive bacteria than against Gram-negative and showed dose-dependent antispasmodic activity on spontaneous contractions, acetylcholine- and potassium chloride-induced contractions. Microwave-assisted extraction could be selected as a successful technique for polyphenol extraction from wild thyme by-product. Biological activities shown in the study open the possibility of potential application of the extract in pharmaceutical, food, functional food and cosmetic products",
publisher = "Elsevier GmbH",
journal = "Journal of Applied Research on Medicinal and Aromatic Plants",
title = "Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract",
pages = "100417",
volume = "31",
doi = "10.1016/j.jarmap.2022.100417"
}
Jovanović, A. A., Vajić, U. V., Mijin, D. Ž., Zdunić, G. M., Šavikin, K. P., Branković, S., Kitić, D.,& Bugarski, B. M.. (2022). Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract. in Journal of Applied Research on Medicinal and Aromatic Plants
Elsevier GmbH., 31, 100417.
https://doi.org/10.1016/j.jarmap.2022.100417
Jovanović AA, Vajić UV, Mijin DŽ, Zdunić GM, Šavikin KP, Branković S, Kitić D, Bugarski BM. Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract. in Journal of Applied Research on Medicinal and Aromatic Plants. 2022;31:100417.
doi:10.1016/j.jarmap.2022.100417 .
Jovanović, Aleksandra A., Vajić, Una-Jovana V., Mijin, Dušan Ž., Zdunić, Gordana M., Šavikin, Katarina P., Branković, Suzana, Kitić, Dušanka, Bugarski, Branko M., "Polyphenol extraction in microwave reactor using by-product of Thymus serpyllum L. and biological potential of the extract" in Journal of Applied Research on Medicinal and Aromatic Plants, 31 (2022):100417,
https://doi.org/10.1016/j.jarmap.2022.100417 . .
18
13

The characterisation of silymarin and silibinin loaded liposomes

Jovanović, Aleksandra A.; Dinić, Svetlana; Uskoković, Aleksandra; Arambašić Jovanović, Jelena; Grdović, Nevena; Vidaković, Melita; Mihailović, Mirjana

(Banja Luka : University in Banjaluka, Faculty of Technology, 2022)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Dinić, Svetlana
AU  - Uskoković, Aleksandra
AU  - Arambašić Jovanović, Jelena
AU  - Grdović, Nevena
AU  - Vidaković, Melita
AU  - Mihailović, Mirjana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7077
AB  - The aim of the present study was the characterization of silymarin and silibinin loaded liposomes 
via determination of encapsulation efficiency, particle size, polydispersity index (PDI), zeta 
potential, mobility, and conductivity, as well as storage stability during 28 days at 4ºC and stability 
after UV irradiation. Encapsulation efficiency of silymarin and silibinin were 92.05±1.41% and 
87.86±2.06%, respectively. Particle size and PDI of the liposomes with silymarin were changed 
from 3541.3±62.5 nm to 2677.0±44.2 nm and from 0.346±0.044 to 0.228±0.036, respectively, 
during the 28-days stability study; particle size and PDI of the liposomes with silibinin were 
changed from 2074.7±19.4 nm to 2704.0±35.0 nm and from 0.328±0.030 to 0.456±0.026, 
respectively. Zeta potential of the silymarin-liposomes and silibinin-liposomes was changed from -
27.0±0.7 mV to -26.4±0.4 mV and from -29.4±0.6 mV to -9.0±0.4 mV, respectively. Mobility and 
conductivity of the liposomes with silymarin were changed from -2.120±0.057 µmcm/Vs to -
2.067±0.028 µmcm/Vs and from 0.017±0.005 mS/cm to 0.009±0.004 mS/cm, respectively. 
Mobility and conductivity of the liposomal particles with silibinin were changed from -2.307±0.053 
µmcm/Vs to -0.708±0.033 µmcm/Vs and from 0.018±0.003 mS/cm to 0.060±0.001 mS/cm, 
respectively. UV irradiation did not affect particle size and PDI of all liposomes, but it caused a 
decrease in zeta potential: -23.9±0.8 mV for silymarin and -24.5±0.7 mV for silibinin, in mobility: -
1.874±0.064 µmcm/Vs for silymarin and -1.920±0.057 µmcm/Vs for silibinin, and in conductivity: 
0.014±0.001 mS/cm for silymarin and 0.007±0.003 mS/cm for silibinin. Overall, the obtained 
results qualify liposomes to be used as silymarin and silibinin carriers for application in functional 
foods and pharmaceutical products.
PB  - Banja Luka : University in Banjaluka, Faculty of Technology
C3  - Book of Abstracts / XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, Banja Luka, October 21-22, 2022
T1  - The characterisation of silymarin and silibinin loaded liposomes
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7077
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Dinić, Svetlana and Uskoković, Aleksandra and Arambašić Jovanović, Jelena and Grdović, Nevena and Vidaković, Melita and Mihailović, Mirjana",
year = "2022",
abstract = "The aim of the present study was the characterization of silymarin and silibinin loaded liposomes 
via determination of encapsulation efficiency, particle size, polydispersity index (PDI), zeta 
potential, mobility, and conductivity, as well as storage stability during 28 days at 4ºC and stability 
after UV irradiation. Encapsulation efficiency of silymarin and silibinin were 92.05±1.41% and 
87.86±2.06%, respectively. Particle size and PDI of the liposomes with silymarin were changed 
from 3541.3±62.5 nm to 2677.0±44.2 nm and from 0.346±0.044 to 0.228±0.036, respectively, 
during the 28-days stability study; particle size and PDI of the liposomes with silibinin were 
changed from 2074.7±19.4 nm to 2704.0±35.0 nm and from 0.328±0.030 to 0.456±0.026, 
respectively. Zeta potential of the silymarin-liposomes and silibinin-liposomes was changed from -
27.0±0.7 mV to -26.4±0.4 mV and from -29.4±0.6 mV to -9.0±0.4 mV, respectively. Mobility and 
conductivity of the liposomes with silymarin were changed from -2.120±0.057 µmcm/Vs to -
2.067±0.028 µmcm/Vs and from 0.017±0.005 mS/cm to 0.009±0.004 mS/cm, respectively. 
Mobility and conductivity of the liposomal particles with silibinin were changed from -2.307±0.053 
µmcm/Vs to -0.708±0.033 µmcm/Vs and from 0.018±0.003 mS/cm to 0.060±0.001 mS/cm, 
respectively. UV irradiation did not affect particle size and PDI of all liposomes, but it caused a 
decrease in zeta potential: -23.9±0.8 mV for silymarin and -24.5±0.7 mV for silibinin, in mobility: -
1.874±0.064 µmcm/Vs for silymarin and -1.920±0.057 µmcm/Vs for silibinin, and in conductivity: 
0.014±0.001 mS/cm for silymarin and 0.007±0.003 mS/cm for silibinin. Overall, the obtained 
results qualify liposomes to be used as silymarin and silibinin carriers for application in functional 
foods and pharmaceutical products.",
publisher = "Banja Luka : University in Banjaluka, Faculty of Technology",
journal = "Book of Abstracts / XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, Banja Luka, October 21-22, 2022",
title = "The characterisation of silymarin and silibinin loaded liposomes",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7077"
}
Jovanović, A. A., Dinić, S., Uskoković, A., Arambašić Jovanović, J., Grdović, N., Vidaković, M.,& Mihailović, M.. (2022). The characterisation of silymarin and silibinin loaded liposomes. in Book of Abstracts / XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, Banja Luka, October 21-22, 2022
Banja Luka : University in Banjaluka, Faculty of Technology., 83.
https://hdl.handle.net/21.15107/rcub_technorep_7077
Jovanović AA, Dinić S, Uskoković A, Arambašić Jovanović J, Grdović N, Vidaković M, Mihailović M. The characterisation of silymarin and silibinin loaded liposomes. in Book of Abstracts / XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, Banja Luka, October 21-22, 2022. 2022;:83.
https://hdl.handle.net/21.15107/rcub_technorep_7077 .
Jovanović, Aleksandra A., Dinić, Svetlana, Uskoković, Aleksandra, Arambašić Jovanović, Jelena, Grdović, Nevena, Vidaković, Melita, Mihailović, Mirjana, "The characterisation of silymarin and silibinin loaded liposomes" in Book of Abstracts / XIV Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, Banja Luka, October 21-22, 2022 (2022):83,
https://hdl.handle.net/21.15107/rcub_technorep_7077 .

THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES

Jovanović, Aleksandra; Dinić, Svetlana; Uskoković, Aleksandra; Arambašić Jovanović, Jelena; Grdović, Nevena; Vidaković, Melita; Mihailović, Mirjana

(Faculty of Technology, University of East Sarajevo, 2022)

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Dinić, Svetlana
AU  - Uskoković, Aleksandra
AU  - Arambašić Jovanović, Jelena
AU  - Grdović, Nevena
AU  - Vidaković, Melita
AU  - Mihailović, Mirjana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6690
AB  - The aim of the present study was the characterization of silymarin and silibinin liposomes via determination of encapsulation efficiency, particle size, polydispersity index (PDI), zeta potential, mobility, and conductivity, as well as storage stability during 28 days at 4ºC and stability after UV irradiation. Encapsulation efficiencies of silymarin and silibinin were 92.05±1.41% and 87.86±2.06%, respectively. Particle size and PDI of the liposomes with silymarin were changed from 3541.3±62.5nm to 2677.0±44.2 nm and from 0.346±0.044 to 0.228±0.036, respectively, during the 28-day stability study; particle size and PDI of the liposomes with silibinin were changed from 2074.7±19.4 nm to 2704.0±35.0 nm and from 0.328±0.030to 0.456±0.026, respectively. The Zeta potential of the silymarin-loaded liposomes and silibinin-loaded liposomes was changed from -27.0±0.7 mV to -26.4±0.4 mV and from -29.4±0.6 mV to -29.0±0.4 mV, respectively. Mobility and conductivity of the liposomes with silymarin were changed from -2.120±0.057 μmcm/Vs to -2.067±0.028 μmcm/Vs and from 0.017±0.005 mS/cm to 0.009±0.004 mS/cm, respectively.  Mobility and conductivity of the liposomal particles with silibinin were changed from -2.307±0.053 μmcm/Vs to -2.110±0.033 μmcm/Vs and from0.018±0.003 mS/cm to 0.060±0.001 mS/cm, respectively. UV irradiation did not affect particle size and PDI of all liposomes, but it caused a decrease in zeta potential: -23.9±0.8 mV for silymarin and -24.5±0.7 mV for silibinin, in mobility: -1.874±0.064 μmcm/Vs for silymarin and -1.920±0.057 μmcm/Vs for silibinin, and in conductivity: 0.014±0.001 mS/cm for silymarin and 0.007±0.003 mS/cm for silibinin. Overall, the obtained results qualify liposomes to be used as silymarin and silibinin carriers for application in functional foods and pharmaceutical products.
PB  - Faculty of Technology, University of East Sarajevo
T2  - Journal of Engineering & Processing Management
T1  - THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES
EP  - 45
IS  - 2
SP  - 40
VL  - 14
DO  - 10.7251/JEPM2202040j
ER  - 
@article{
author = "Jovanović, Aleksandra and Dinić, Svetlana and Uskoković, Aleksandra and Arambašić Jovanović, Jelena and Grdović, Nevena and Vidaković, Melita and Mihailović, Mirjana",
year = "2022",
abstract = "The aim of the present study was the characterization of silymarin and silibinin liposomes via determination of encapsulation efficiency, particle size, polydispersity index (PDI), zeta potential, mobility, and conductivity, as well as storage stability during 28 days at 4ºC and stability after UV irradiation. Encapsulation efficiencies of silymarin and silibinin were 92.05±1.41% and 87.86±2.06%, respectively. Particle size and PDI of the liposomes with silymarin were changed from 3541.3±62.5nm to 2677.0±44.2 nm and from 0.346±0.044 to 0.228±0.036, respectively, during the 28-day stability study; particle size and PDI of the liposomes with silibinin were changed from 2074.7±19.4 nm to 2704.0±35.0 nm and from 0.328±0.030to 0.456±0.026, respectively. The Zeta potential of the silymarin-loaded liposomes and silibinin-loaded liposomes was changed from -27.0±0.7 mV to -26.4±0.4 mV and from -29.4±0.6 mV to -29.0±0.4 mV, respectively. Mobility and conductivity of the liposomes with silymarin were changed from -2.120±0.057 μmcm/Vs to -2.067±0.028 μmcm/Vs and from 0.017±0.005 mS/cm to 0.009±0.004 mS/cm, respectively.  Mobility and conductivity of the liposomal particles with silibinin were changed from -2.307±0.053 μmcm/Vs to -2.110±0.033 μmcm/Vs and from0.018±0.003 mS/cm to 0.060±0.001 mS/cm, respectively. UV irradiation did not affect particle size and PDI of all liposomes, but it caused a decrease in zeta potential: -23.9±0.8 mV for silymarin and -24.5±0.7 mV for silibinin, in mobility: -1.874±0.064 μmcm/Vs for silymarin and -1.920±0.057 μmcm/Vs for silibinin, and in conductivity: 0.014±0.001 mS/cm for silymarin and 0.007±0.003 mS/cm for silibinin. Overall, the obtained results qualify liposomes to be used as silymarin and silibinin carriers for application in functional foods and pharmaceutical products.",
publisher = "Faculty of Technology, University of East Sarajevo",
journal = "Journal of Engineering & Processing Management",
title = "THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES",
pages = "45-40",
number = "2",
volume = "14",
doi = "10.7251/JEPM2202040j"
}
Jovanović, A., Dinić, S., Uskoković, A., Arambašić Jovanović, J., Grdović, N., Vidaković, M.,& Mihailović, M.. (2022). THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES. in Journal of Engineering & Processing Management
Faculty of Technology, University of East Sarajevo., 14(2), 40-45.
https://doi.org/10.7251/JEPM2202040j
Jovanović A, Dinić S, Uskoković A, Arambašić Jovanović J, Grdović N, Vidaković M, Mihailović M. THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES. in Journal of Engineering & Processing Management. 2022;14(2):40-45.
doi:10.7251/JEPM2202040j .
Jovanović, Aleksandra, Dinić, Svetlana, Uskoković, Aleksandra, Arambašić Jovanović, Jelena, Grdović, Nevena, Vidaković, Melita, Mihailović, Mirjana, "THE CHARACTERIZATION OF SILYMARIN AND SILIBININ LIPOSOMES" in Journal of Engineering & Processing Management, 14, no. 2 (2022):40-45,
https://doi.org/10.7251/JEPM2202040j . .

Encapsulation of Plant Extracts

Kalušević, Ana; Salević, Ana; Jovanović, Aleksandra; Trifković, Kata; Veljović, Mile; Pravilović, Radoslava; Nedović, Viktor

(Taylor and Francis, 2022)

TY  - CHAP
AU  - Kalušević, Ana
AU  - Salević, Ana
AU  - Jovanović, Aleksandra
AU  - Trifković, Kata
AU  - Veljović, Mile
AU  - Pravilović, Radoslava
AU  - Nedović, Viktor
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6194
AB  - Food technology has adopted new principles and practices that are rapidly changing the food sector. New foods are now available under more uniform standards and better quality control. Globalised food market offers opportunities for manufacturers to increase production and profit, and at the same time, consumers benefit from the choice of food products like never before. All this is possible only because of the innovations in the food sector. One of such innovations is encapsulation technology, which aims to preserve food quality, enhance the sensorial properties of food and increase the efficiency in food processing.

This book discusses the uses of encapsulation technology in food practices and conventional processes and also highlights new directions in food processing. In the introductory chapters’ review of encapsulation technologies, carrier materials and criteria for their selection, analytical methods for characterisation of encapsulated products and some aspects of product design and process optimisation. The most important achievements of encapsulation technology in the food sector are reviewed in the later chapters related to encapsulation of food ingredients, food biocatalysts and examples of usage of encapsulated active ingredients in the dairy and meat industry, beverage production, etc. In addition, the implementation of nanotechnology in the food sector is reviewed, emphasizing the most important materials and technologies for the production of nanoencapsulates. The book is a valuable source of information on encapsulation technology, for academia and industry, especially the food sector, with the aim of enhancing knowledge transfer.
PB  - Taylor and Francis
T2  - Encapsulation in Food Processing and Fermentation
T1  - Encapsulation of Plant Extracts
EP  - 202
SP  - 171
DO  - 10.1201/9780429324918-7
ER  - 
@inbook{
author = "Kalušević, Ana and Salević, Ana and Jovanović, Aleksandra and Trifković, Kata and Veljović, Mile and Pravilović, Radoslava and Nedović, Viktor",
year = "2022",
abstract = "Food technology has adopted new principles and practices that are rapidly changing the food sector. New foods are now available under more uniform standards and better quality control. Globalised food market offers opportunities for manufacturers to increase production and profit, and at the same time, consumers benefit from the choice of food products like never before. All this is possible only because of the innovations in the food sector. One of such innovations is encapsulation technology, which aims to preserve food quality, enhance the sensorial properties of food and increase the efficiency in food processing.

This book discusses the uses of encapsulation technology in food practices and conventional processes and also highlights new directions in food processing. In the introductory chapters’ review of encapsulation technologies, carrier materials and criteria for their selection, analytical methods for characterisation of encapsulated products and some aspects of product design and process optimisation. The most important achievements of encapsulation technology in the food sector are reviewed in the later chapters related to encapsulation of food ingredients, food biocatalysts and examples of usage of encapsulated active ingredients in the dairy and meat industry, beverage production, etc. In addition, the implementation of nanotechnology in the food sector is reviewed, emphasizing the most important materials and technologies for the production of nanoencapsulates. The book is a valuable source of information on encapsulation technology, for academia and industry, especially the food sector, with the aim of enhancing knowledge transfer.",
publisher = "Taylor and Francis",
journal = "Encapsulation in Food Processing and Fermentation",
booktitle = "Encapsulation of Plant Extracts",
pages = "202-171",
doi = "10.1201/9780429324918-7"
}
Kalušević, A., Salević, A., Jovanović, A., Trifković, K., Veljović, M., Pravilović, R.,& Nedović, V.. (2022). Encapsulation of Plant Extracts. in Encapsulation in Food Processing and Fermentation
Taylor and Francis., 171-202.
https://doi.org/10.1201/9780429324918-7
Kalušević A, Salević A, Jovanović A, Trifković K, Veljović M, Pravilović R, Nedović V. Encapsulation of Plant Extracts. in Encapsulation in Food Processing and Fermentation. 2022;:171-202.
doi:10.1201/9780429324918-7 .
Kalušević, Ana, Salević, Ana, Jovanović, Aleksandra, Trifković, Kata, Veljović, Mile, Pravilović, Radoslava, Nedović, Viktor, "Encapsulation of Plant Extracts" in Encapsulation in Food Processing and Fermentation (2022):171-202,
https://doi.org/10.1201/9780429324918-7 . .
2

Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts

Volić, Mina; Obradović, Nataša; Jovanović, Aleksandra; Bugarski, Branko

(University of Novi Sad, Faculty of Technology Novi Sad, 2022)

TY  - CONF
AU  - Volić, Mina
AU  - Obradović, Nataša
AU  - Jovanović, Aleksandra
AU  - Bugarski, Branko
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6451
AB  - Cherry fruits are known for their wide range of nutritive and bioactive compounds, including
fibers, vitamins, and phytonutrients. Sweet cherry consumption has been associated with
several health benefits against human problems such as cardiovascular diseases, cancer,
diabetes, and Alzheimer’s disease. Particularly, cherries contain abundant phenolic compounds
with antioxidant, anti-inflammatory, and anticancer properties as they exert a protective role
against oxidative stress and free radical damages. However, there is not a specific method to
fully extract all phenolics and other compounds from sweet cherries. Thus, this study aimed to
optimize the extraction of cherries through different extraction procedures (maceration and
ultrasound-assisted extraction) using different solvents (50% EtOH with and without HCl, and
Tris buffer). The resulting cherry fruit extracts were investigated regarding their i) total phenol
content - according to the Folin-Ciocalteu colorimetric method, ii) total protein content -
evaluated using the Bradford protein assay, and iii) antioxidant activity – characterized by
ABTS, DPPH, and FRAP assays. The ultrasound-assisted extraction using 50% EtOH and HCl
(pH=2.3) demonstrated the best results for total phenol content (7.51 mg/L), DPPH inhibition
(23.7%), and FRAP reducing power (24.5 mmol/g). On the contrary, the highest ABTS
scavenging activity was noticed for maceration obtained extract with 50% EtOH and HCl (7.23
mg/mL). Finally, the best protein yield was obtained for cherries when extraction was
performed in 0.1M Tris buffer at pH=11.2 (0.23 mg/mL). The optimization methodology in this
work is used as a screening test for producing bioactive compounds-rich extracts for the food
industry
PB  - University of Novi Sad, Faculty of Technology Novi Sad
C3  - Book of Abstracts of the 2nd International Conference on Advanced Production and Processing
T1  - Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts
SP  - 180
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6451
ER  - 
@conference{
author = "Volić, Mina and Obradović, Nataša and Jovanović, Aleksandra and Bugarski, Branko",
year = "2022",
abstract = "Cherry fruits are known for their wide range of nutritive and bioactive compounds, including
fibers, vitamins, and phytonutrients. Sweet cherry consumption has been associated with
several health benefits against human problems such as cardiovascular diseases, cancer,
diabetes, and Alzheimer’s disease. Particularly, cherries contain abundant phenolic compounds
with antioxidant, anti-inflammatory, and anticancer properties as they exert a protective role
against oxidative stress and free radical damages. However, there is not a specific method to
fully extract all phenolics and other compounds from sweet cherries. Thus, this study aimed to
optimize the extraction of cherries through different extraction procedures (maceration and
ultrasound-assisted extraction) using different solvents (50% EtOH with and without HCl, and
Tris buffer). The resulting cherry fruit extracts were investigated regarding their i) total phenol
content - according to the Folin-Ciocalteu colorimetric method, ii) total protein content -
evaluated using the Bradford protein assay, and iii) antioxidant activity – characterized by
ABTS, DPPH, and FRAP assays. The ultrasound-assisted extraction using 50% EtOH and HCl
(pH=2.3) demonstrated the best results for total phenol content (7.51 mg/L), DPPH inhibition
(23.7%), and FRAP reducing power (24.5 mmol/g). On the contrary, the highest ABTS
scavenging activity was noticed for maceration obtained extract with 50% EtOH and HCl (7.23
mg/mL). Finally, the best protein yield was obtained for cherries when extraction was
performed in 0.1M Tris buffer at pH=11.2 (0.23 mg/mL). The optimization methodology in this
work is used as a screening test for producing bioactive compounds-rich extracts for the food
industry",
publisher = "University of Novi Sad, Faculty of Technology Novi Sad",
journal = "Book of Abstracts of the 2nd International Conference on Advanced Production and Processing",
title = "Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts",
pages = "180",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6451"
}
Volić, M., Obradović, N., Jovanović, A.,& Bugarski, B.. (2022). Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts. in Book of Abstracts of the 2nd International Conference on Advanced Production and Processing
University of Novi Sad, Faculty of Technology Novi Sad., 180.
https://hdl.handle.net/21.15107/rcub_technorep_6451
Volić M, Obradović N, Jovanović A, Bugarski B. Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts. in Book of Abstracts of the 2nd International Conference on Advanced Production and Processing. 2022;:180.
https://hdl.handle.net/21.15107/rcub_technorep_6451 .
Volić, Mina, Obradović, Nataša, Jovanović, Aleksandra, Bugarski, Branko, "Optimization of Sweet Cherry Extraction: Evaluation of Total Phenol Content, Protein Content, and Antioxidant Activity of Extracts" in Book of Abstracts of the 2nd International Conference on Advanced Production and Processing (2022):180,
https://hdl.handle.net/21.15107/rcub_technorep_6451 .

The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme

Jovanović, Aleksandra; Đorđević, Verica; Petrović, Predrag; Pljevljakusic, Dejan S.; Zdunic, Gordana M.; Savikin, Katarina P.; Bugarski, Branko

(2021)

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Đorđević, Verica
AU  - Petrović, Predrag
AU  - Pljevljakusic, Dejan S.
AU  - Zdunic, Gordana M.
AU  - Savikin, Katarina P.
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4794
AB  - The aims of the presented study were the investigation of the effect of different ultrasound-assisted extraction conditions (particle size, solid-to-solvent ratio, ethanol concentration and time) on polyphenol and flavonoid contents and antioxidant activity of wild thyme (Thymus serpyllum L.) extracts, HPLC qualitative and quantitative analysis, as well as the examination of antimicrobial properties against seven bacterial strains and one fungal strain. According to the results, the highest total polyphenol and flavonoid contents were reached with particle size of 0.3 mm, 1:30 solid-to-solvent ratio, 30 % ethanol and 30 min of extraction (31.9 +/- 0.1 mg gallic acid equivalents (GAE)/L and 16.8 +/- 0.2 mg catechin equivalents (CE)/L, respectively). The most abundant polyphenolic compounds were rosmarinic acid, luteolin 7-O-glucumnide and salvianolic acid I (185.2 +/- 7.3, 141.6 +/- 3.4 and 76.4 +/- 2.1 mu g/mL, respectively). The best antioxidant recovery was achieved with particles of 0.3 mm and 1:30 solid-to-solvent ratio. Furthermore, the addition of ethanol in aqueous extraction medium has caused significantly better antioxidant activity than pure water. On the other hand, there was no statistically significant difference in antioxidant capacity between various ethanol percentage, as well as between time of 15 and 30 min. Selected extracts have shown significant antibacterial activity, particularly against Enterococcus faecalis, Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus and Yersinia enterocolitica.
T2  - Journal of Applied Research on Medicinal and Aromatic Plants
T1  - The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme
VL  - 25
DO  - 10.1016/j.jarmap.2021.100328
ER  - 
@article{
author = "Jovanović, Aleksandra and Đorđević, Verica and Petrović, Predrag and Pljevljakusic, Dejan S. and Zdunic, Gordana M. and Savikin, Katarina P. and Bugarski, Branko",
year = "2021",
abstract = "The aims of the presented study were the investigation of the effect of different ultrasound-assisted extraction conditions (particle size, solid-to-solvent ratio, ethanol concentration and time) on polyphenol and flavonoid contents and antioxidant activity of wild thyme (Thymus serpyllum L.) extracts, HPLC qualitative and quantitative analysis, as well as the examination of antimicrobial properties against seven bacterial strains and one fungal strain. According to the results, the highest total polyphenol and flavonoid contents were reached with particle size of 0.3 mm, 1:30 solid-to-solvent ratio, 30 % ethanol and 30 min of extraction (31.9 +/- 0.1 mg gallic acid equivalents (GAE)/L and 16.8 +/- 0.2 mg catechin equivalents (CE)/L, respectively). The most abundant polyphenolic compounds were rosmarinic acid, luteolin 7-O-glucumnide and salvianolic acid I (185.2 +/- 7.3, 141.6 +/- 3.4 and 76.4 +/- 2.1 mu g/mL, respectively). The best antioxidant recovery was achieved with particles of 0.3 mm and 1:30 solid-to-solvent ratio. Furthermore, the addition of ethanol in aqueous extraction medium has caused significantly better antioxidant activity than pure water. On the other hand, there was no statistically significant difference in antioxidant capacity between various ethanol percentage, as well as between time of 15 and 30 min. Selected extracts have shown significant antibacterial activity, particularly against Enterococcus faecalis, Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus and Yersinia enterocolitica.",
journal = "Journal of Applied Research on Medicinal and Aromatic Plants",
title = "The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme",
volume = "25",
doi = "10.1016/j.jarmap.2021.100328"
}
Jovanović, A., Đorđević, V., Petrović, P., Pljevljakusic, D. S., Zdunic, G. M., Savikin, K. P.,& Bugarski, B.. (2021). The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme. in Journal of Applied Research on Medicinal and Aromatic Plants, 25.
https://doi.org/10.1016/j.jarmap.2021.100328
Jovanović A, Đorđević V, Petrović P, Pljevljakusic DS, Zdunic GM, Savikin KP, Bugarski B. The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme. in Journal of Applied Research on Medicinal and Aromatic Plants. 2021;25.
doi:10.1016/j.jarmap.2021.100328 .
Jovanović, Aleksandra, Đorđević, Verica, Petrović, Predrag, Pljevljakusic, Dejan S., Zdunic, Gordana M., Savikin, Katarina P., Bugarski, Branko, "The influence of different extraction conditions on polyphenol content, antioxidant and antimicrobial activities of wild thyme" in Journal of Applied Research on Medicinal and Aromatic Plants, 25 (2021),
https://doi.org/10.1016/j.jarmap.2021.100328 . .
29
30

Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties

Jovanović, Aleksandra; Petrović, Predrag; Zdunic, Gordana M.; Savikin, Katarina P.; Kitic, Dusanka; Đorđević, Verica; Bugarski, Branko; Brankovic, Suzana

(2021)

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Petrović, Predrag
AU  - Zdunic, Gordana M.
AU  - Savikin, Katarina P.
AU  - Kitic, Dusanka
AU  - Đorđević, Verica
AU  - Bugarski, Branko
AU  - Brankovic, Suzana
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4798
AB  - In the presented study, polyphenol profile, spasmolytic, antimicrobial and antioxidant properties of lyophilized Thymus serpyllum extracts were examined. The main phenolic acid in the extracts was rosmarinic acid, followed by salvianolic acid I, salvianolic acid K isomer and caffeic acid, whereas chlorogenic acid was detected only in traces; the dominant flavonoids were luteolin 7-O-glucuronide and 6-hydroxyluteolin 7-O-glucoside, while the contents of apigenin glucuronide and 6,8-di-C-glucosylapigenin were significantly lower. All tested extracts have shown spasmolytic effect in a dose-dependent manner on spontaneous contractions, acetylcholine- and potassium chloride-induced contractions; lyophilized extract obtained in maceration has shown significantly better spasmolytic activity. The mentioned extract has shown dosedependent spasmolytic effect in the model of contractions induced by barium chloride and calcium chloride, as well. Furthermore, lyophilized extracts were effective against Gram-positive bacteria and showed only moderate antifungal activity. Ultrasound-assisted extraction provided extracts with better ability of neutralization DPPH radicals, whereas maceration and ultrasound-assisted extraction approved to be better regarding beta-carotene bleaching assay. Due to spasmolytic, antimicrobial and antioxidant properties shown in the present study, polyphenols-rich T. serpyllum extract may be used as adjuvant in therapy of gastrointestinal disorders and infections caused by some of the susceptible pathogens.
T2  - South African Journal of Botany
T1  - Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties
EP  - 283
SP  - 274
VL  - 142
DO  - 10.1016/j.sajb.2021.06.028
ER  - 
@article{
author = "Jovanović, Aleksandra and Petrović, Predrag and Zdunic, Gordana M. and Savikin, Katarina P. and Kitic, Dusanka and Đorđević, Verica and Bugarski, Branko and Brankovic, Suzana",
year = "2021",
abstract = "In the presented study, polyphenol profile, spasmolytic, antimicrobial and antioxidant properties of lyophilized Thymus serpyllum extracts were examined. The main phenolic acid in the extracts was rosmarinic acid, followed by salvianolic acid I, salvianolic acid K isomer and caffeic acid, whereas chlorogenic acid was detected only in traces; the dominant flavonoids were luteolin 7-O-glucuronide and 6-hydroxyluteolin 7-O-glucoside, while the contents of apigenin glucuronide and 6,8-di-C-glucosylapigenin were significantly lower. All tested extracts have shown spasmolytic effect in a dose-dependent manner on spontaneous contractions, acetylcholine- and potassium chloride-induced contractions; lyophilized extract obtained in maceration has shown significantly better spasmolytic activity. The mentioned extract has shown dosedependent spasmolytic effect in the model of contractions induced by barium chloride and calcium chloride, as well. Furthermore, lyophilized extracts were effective against Gram-positive bacteria and showed only moderate antifungal activity. Ultrasound-assisted extraction provided extracts with better ability of neutralization DPPH radicals, whereas maceration and ultrasound-assisted extraction approved to be better regarding beta-carotene bleaching assay. Due to spasmolytic, antimicrobial and antioxidant properties shown in the present study, polyphenols-rich T. serpyllum extract may be used as adjuvant in therapy of gastrointestinal disorders and infections caused by some of the susceptible pathogens.",
journal = "South African Journal of Botany",
title = "Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties",
pages = "283-274",
volume = "142",
doi = "10.1016/j.sajb.2021.06.028"
}
Jovanović, A., Petrović, P., Zdunic, G. M., Savikin, K. P., Kitic, D., Đorđević, V., Bugarski, B.,& Brankovic, S.. (2021). Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties. in South African Journal of Botany, 142, 274-283.
https://doi.org/10.1016/j.sajb.2021.06.028
Jovanović A, Petrović P, Zdunic GM, Savikin KP, Kitic D, Đorđević V, Bugarski B, Brankovic S. Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties. in South African Journal of Botany. 2021;142:274-283.
doi:10.1016/j.sajb.2021.06.028 .
Jovanović, Aleksandra, Petrović, Predrag, Zdunic, Gordana M., Savikin, Katarina P., Kitic, Dusanka, Đorđević, Verica, Bugarski, Branko, Brankovic, Suzana, "Influence of lyophilized Thymus serpyllum L. extracts on the gastrointestinal system: Spasmolytic, antimicrobial and antioxidant properties" in South African Journal of Botany, 142 (2021):274-283,
https://doi.org/10.1016/j.sajb.2021.06.028 . .
11
6

Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review

Jovanović, Aleksandra A.; Balanč, Bojana D.; Petrović, Predrag; Pravilović, Radoslava; Đorđević, Verica B.

(University of East Sarajevo, Faculty of Technology, 2021)

TY  - JOUR
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana D.
AU  - Petrović, Predrag
AU  - Pravilović, Radoslava
AU  - Đorđević, Verica B.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5997
AB  - In traditional medicine Thymus serpyllum L. (wild thyme) herb represents a part of a large number of herbal medicinal formulations such as syrups, tinctures, infusions, teas, and decoctions. In recent years, there has been a growing interest in testing the biological properties of wild thyme, because the plant is a high-quality raw material, rich in essential oil and pharmacologically active polyphenolic compounds, which can be included in various formulations in the pharmaceutical, cosmetic, food, and chemical industries. Wild thyme extracts and essential oil have shown significant nitric oxide, ABTS and DPPH radicals scavenging potential, ferrous ion chelating property, reducing activity and ability to inhibit peroxidation of deoxyribonucleic acid (DNA), proteins and lipids. Wild thyme extracts exerted antibacterial activity against Bacillus cereus, Enterococcus faecalis, Listeria monocytogenes, Staphylococcus aureus, Escherichia coli, Salmonella enterica, Yersinia enterocolitica, as well as Lactic acid bacteria. Wild thyme essential oil has shown antibacterial potential against E. coli, L. monocytogenes, P. aeruginosa, S. enteritidis, S. aureus, Streptococcus salivariu, S. mutans, S. sanguinis, S. pyogenes, E. feacalis, B. cereus, B. subtilis, B. pumilis, Lactobacillus acidophilus, Proteus mirabilis, Klebsiella pneumoniae, Salmonella choleraesuis, and Salmonella poona. T. serpyllum extract possesses antifungal activity against Fusarium solani, F. moniliforme, Aspergillus flavus, Microsporum canis, Alternaria species, Candida albicans, and C. glabarata. The essential oil efficiently inhibited the growth of C. albicans, C. glabrata and Aspergillus fungi. Depending on the concentration, wild thyme extract significantly relaxed spontaneous contractions, as well as acetylcholine-, potassium chloride-, barium chlorideand calcium chloride-induced contractions of the isolated rat ileum. The extract significantly reduced the expression of the inducible enzyme cyclooxygenase-2 and inhibited acetylcholinesterase, myeloperoxidase and α-glucosidase activity. T. serpyllum extract has shown cytotoxic activity on human breast cancer cell lines, while essential oil has shown the antitumor potential in human cell lung cancer, colon, cervical, hepatocellular, prostate, and breast adeno-carcinoma.
PB  - University of East Sarajevo, Faculty of Technology
T2  - Journal of Engineering & Processing Management
T1  - Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review
EP  - 41
IS  - 2
SP  - 32
VL  - 13
DO  - 10.7251/JEPM2102032J
ER  - 
@article{
author = "Jovanović, Aleksandra A. and Balanč, Bojana D. and Petrović, Predrag and Pravilović, Radoslava and Đorđević, Verica B.",
year = "2021",
abstract = "In traditional medicine Thymus serpyllum L. (wild thyme) herb represents a part of a large number of herbal medicinal formulations such as syrups, tinctures, infusions, teas, and decoctions. In recent years, there has been a growing interest in testing the biological properties of wild thyme, because the plant is a high-quality raw material, rich in essential oil and pharmacologically active polyphenolic compounds, which can be included in various formulations in the pharmaceutical, cosmetic, food, and chemical industries. Wild thyme extracts and essential oil have shown significant nitric oxide, ABTS and DPPH radicals scavenging potential, ferrous ion chelating property, reducing activity and ability to inhibit peroxidation of deoxyribonucleic acid (DNA), proteins and lipids. Wild thyme extracts exerted antibacterial activity against Bacillus cereus, Enterococcus faecalis, Listeria monocytogenes, Staphylococcus aureus, Escherichia coli, Salmonella enterica, Yersinia enterocolitica, as well as Lactic acid bacteria. Wild thyme essential oil has shown antibacterial potential against E. coli, L. monocytogenes, P. aeruginosa, S. enteritidis, S. aureus, Streptococcus salivariu, S. mutans, S. sanguinis, S. pyogenes, E. feacalis, B. cereus, B. subtilis, B. pumilis, Lactobacillus acidophilus, Proteus mirabilis, Klebsiella pneumoniae, Salmonella choleraesuis, and Salmonella poona. T. serpyllum extract possesses antifungal activity against Fusarium solani, F. moniliforme, Aspergillus flavus, Microsporum canis, Alternaria species, Candida albicans, and C. glabarata. The essential oil efficiently inhibited the growth of C. albicans, C. glabrata and Aspergillus fungi. Depending on the concentration, wild thyme extract significantly relaxed spontaneous contractions, as well as acetylcholine-, potassium chloride-, barium chlorideand calcium chloride-induced contractions of the isolated rat ileum. The extract significantly reduced the expression of the inducible enzyme cyclooxygenase-2 and inhibited acetylcholinesterase, myeloperoxidase and α-glucosidase activity. T. serpyllum extract has shown cytotoxic activity on human breast cancer cell lines, while essential oil has shown the antitumor potential in human cell lung cancer, colon, cervical, hepatocellular, prostate, and breast adeno-carcinoma.",
publisher = "University of East Sarajevo, Faculty of Technology",
journal = "Journal of Engineering & Processing Management",
title = "Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review",
pages = "41-32",
number = "2",
volume = "13",
doi = "10.7251/JEPM2102032J"
}
Jovanović, A. A., Balanč, B. D., Petrović, P., Pravilović, R.,& Đorđević, V. B.. (2021). Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review. in Journal of Engineering & Processing Management
University of East Sarajevo, Faculty of Technology., 13(2), 32-41.
https://doi.org/10.7251/JEPM2102032J
Jovanović AA, Balanč BD, Petrović P, Pravilović R, Đorđević VB. Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review. in Journal of Engineering & Processing Management. 2021;13(2):32-41.
doi:10.7251/JEPM2102032J .
Jovanović, Aleksandra A., Balanč, Bojana D., Petrović, Predrag, Pravilović, Radoslava, Đorđević, Verica B., "Pharmacological potential of Thymus serpyllum L. (wild thyme) extracts and essential oil: A review" in Journal of Engineering & Processing Management, 13, no. 2 (2021):32-41,
https://doi.org/10.7251/JEPM2102032J . .
6

Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques

Jovanović, Aleksandra A.; Petrović, Predrag; Đorđević, Verica; Zdunić, Gordana; Šavikin, Katarina; Bugarski, Branko

(Serbian Nutrition Society, Belgrade, 2021)

TY  - JOUR
AU  - Jovanović, Aleksandra A.
AU  - Petrović, Predrag
AU  - Đorđević, Verica
AU  - Zdunić, Gordana
AU  - Šavikin, Katarina
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6409
AB  - Polyphenols, as plant secondary metabolites, achieve strong antioxidant capacity by scavenging free radicals, chelating metals, and interacting with lipid membranes, proteins and nucleic acids. The aim of the present study was the examination of the applied extraction conditions (particle size of plant material, solvent-to-solid ratio, solvent type, and extraction time) and extraction techniques (maceration, heat- and ultrasound-assisted extractions) on the free radicals' scavenging capacity of Thymus serpyllum polyphenol extracts, determined in ABTS and DPPH methods. According to the results, smaller particle size of herbal drug resulted with better antioxidant potential. However, this effect was statistically significant for heat- and ultrasound-assisted extractions according to ABTS assay, and for maceration and heat-assisted extraction according to DPPH assay. Furthermore, the increase in solvent-to-solid ratio from 10:1 to 30:1 resulted in the extracts with higher antioxidant activity regardless of the type of extraction technique, whereas the scavenging activity of ethanol extracts was higher in comparison to aqueous extracts. In terms of extraction time for achieving the highest free radicals' scavenging capacity, 30 min can be recommended for maceration and heat-assisted extraction, and 5 min for processing by ultrasonic probe. In neutralization of ABTS radicals, there were no statistically significant differences between antioxidant capacity of T. serpyllum extracts obtained by using different extraction techniques, whereas in DPPH scavenging activity, the extracts obtained in ultrasound-assisted extraction have shown statistically significantly higher activity. Due to the free radicals' scavenging properties shown in the present study, T. serpyllum extracts may be used in the formulations in food, pharmaceutical, cosmetic, and chemical industries.
AB  - Polifenoli, kao biljni sekundarni metaboliti, poseduju
snažan antioksidativni kapacitet za neutralizaciju slobodnih radikala, heliranje metala i interakciju sa lipidnim membranama, proteinima i nukleinskim kiselinama. Cilj prikazane studije je ispitivanje primenjenih uslova ekstrakcije
(veličine čestica biljnog materijala, odnos rastvarač:biljna
droga, vrsta rastvarača i vreme ekstrakcije) i metode
ekstrakcije (maceracija, ekstrakcija na povišenoj temperaturi i ekstrakcija ultrazvučnim talasima) na sposobnost
neutralizacije slobodnih radikala od strane polifenolnih ekstrakata biljke Thymus serpyllum, ispitanu primenom ABTS i
DPPH metoda. Prema dobijenim rezultatima, manje čestice biljnog materijala daju ekstrakte sa boljim antioksidativnim
potencijalom. Međutim, ovaj efekat je statistički značajan za ekstrakte dobijene na povišenoj temperaturi i ultrazvučnim
talasima prema ABTS testu, dok je u DPPH testu efekat bio značajan samo za esktrakte dobijene maceracijom i na
povišenoj temperaturi. Povećanje odnosa rastvarač:biljna droga od 10:1 do 30:1 dovodi do povećanja antioksidativne
aktivnosti ekstrakata bez obzira na primenjenu tehniku ekstrakcije, dok etanolni ekstrakti pokazuju bolji potencijal u neutralizaciji slobodnih radikala u odnosu na vodene ekstrakte. Pri ispitivanju vremena ekstrakcije koje je neophodno da se
dostigne najveći antioksidativni kapacitet ekstrakta, pokazano je da je 30 min optimalno vreme za maceraciju i ekstrakciju na povišenoj temperaturi, dok je za ekstrakciju ultrazvučnom sondom potrebno 5 min. Pri neutralizaciji ABTS radikala
nije bilo statistički značajne razlike između T. serpyllum ekstrakata dobijenim različitim tehnikama, dok su u DPPH testu
ekstrakti dobijeni primenom ultrazvučne sonde pokazali statistički značajno veću aktivnost. Zahvaljujući prikazanim svojstvima u neutralizaciji slobodnih radikala, ekstrakti biljke T. serpyllum mogu se koristiti u formulacijama u prehrambenoj,
farmaceutskoj, kozmetičkoj i hemijskoj industriji.
PB  - Serbian Nutrition Society, Belgrade
T2  - Hrana i ishrana
T1  - Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques
EP  - 20
IS  - 2
SP  - 15
VL  - 62
DO  - 10.5937/hraIsh2102015J
ER  - 
@article{
author = "Jovanović, Aleksandra A. and Petrović, Predrag and Đorđević, Verica and Zdunić, Gordana and Šavikin, Katarina and Bugarski, Branko",
year = "2021",
abstract = "Polyphenols, as plant secondary metabolites, achieve strong antioxidant capacity by scavenging free radicals, chelating metals, and interacting with lipid membranes, proteins and nucleic acids. The aim of the present study was the examination of the applied extraction conditions (particle size of plant material, solvent-to-solid ratio, solvent type, and extraction time) and extraction techniques (maceration, heat- and ultrasound-assisted extractions) on the free radicals' scavenging capacity of Thymus serpyllum polyphenol extracts, determined in ABTS and DPPH methods. According to the results, smaller particle size of herbal drug resulted with better antioxidant potential. However, this effect was statistically significant for heat- and ultrasound-assisted extractions according to ABTS assay, and for maceration and heat-assisted extraction according to DPPH assay. Furthermore, the increase in solvent-to-solid ratio from 10:1 to 30:1 resulted in the extracts with higher antioxidant activity regardless of the type of extraction technique, whereas the scavenging activity of ethanol extracts was higher in comparison to aqueous extracts. In terms of extraction time for achieving the highest free radicals' scavenging capacity, 30 min can be recommended for maceration and heat-assisted extraction, and 5 min for processing by ultrasonic probe. In neutralization of ABTS radicals, there were no statistically significant differences between antioxidant capacity of T. serpyllum extracts obtained by using different extraction techniques, whereas in DPPH scavenging activity, the extracts obtained in ultrasound-assisted extraction have shown statistically significantly higher activity. Due to the free radicals' scavenging properties shown in the present study, T. serpyllum extracts may be used in the formulations in food, pharmaceutical, cosmetic, and chemical industries., Polifenoli, kao biljni sekundarni metaboliti, poseduju
snažan antioksidativni kapacitet za neutralizaciju slobodnih radikala, heliranje metala i interakciju sa lipidnim membranama, proteinima i nukleinskim kiselinama. Cilj prikazane studije je ispitivanje primenjenih uslova ekstrakcije
(veličine čestica biljnog materijala, odnos rastvarač:biljna
droga, vrsta rastvarača i vreme ekstrakcije) i metode
ekstrakcije (maceracija, ekstrakcija na povišenoj temperaturi i ekstrakcija ultrazvučnim talasima) na sposobnost
neutralizacije slobodnih radikala od strane polifenolnih ekstrakata biljke Thymus serpyllum, ispitanu primenom ABTS i
DPPH metoda. Prema dobijenim rezultatima, manje čestice biljnog materijala daju ekstrakte sa boljim antioksidativnim
potencijalom. Međutim, ovaj efekat je statistički značajan za ekstrakte dobijene na povišenoj temperaturi i ultrazvučnim
talasima prema ABTS testu, dok je u DPPH testu efekat bio značajan samo za esktrakte dobijene maceracijom i na
povišenoj temperaturi. Povećanje odnosa rastvarač:biljna droga od 10:1 do 30:1 dovodi do povećanja antioksidativne
aktivnosti ekstrakata bez obzira na primenjenu tehniku ekstrakcije, dok etanolni ekstrakti pokazuju bolji potencijal u neutralizaciji slobodnih radikala u odnosu na vodene ekstrakte. Pri ispitivanju vremena ekstrakcije koje je neophodno da se
dostigne najveći antioksidativni kapacitet ekstrakta, pokazano je da je 30 min optimalno vreme za maceraciju i ekstrakciju na povišenoj temperaturi, dok je za ekstrakciju ultrazvučnom sondom potrebno 5 min. Pri neutralizaciji ABTS radikala
nije bilo statistički značajne razlike između T. serpyllum ekstrakata dobijenim različitim tehnikama, dok su u DPPH testu
ekstrakti dobijeni primenom ultrazvučne sonde pokazali statistički značajno veću aktivnost. Zahvaljujući prikazanim svojstvima u neutralizaciji slobodnih radikala, ekstrakti biljke T. serpyllum mogu se koristiti u formulacijama u prehrambenoj,
farmaceutskoj, kozmetičkoj i hemijskoj industriji.",
publisher = "Serbian Nutrition Society, Belgrade",
journal = "Hrana i ishrana",
title = "Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques",
pages = "20-15",
number = "2",
volume = "62",
doi = "10.5937/hraIsh2102015J"
}
Jovanović, A. A., Petrović, P., Đorđević, V., Zdunić, G., Šavikin, K.,& Bugarski, B.. (2021). Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques. in Hrana i ishrana
Serbian Nutrition Society, Belgrade., 62(2), 15-20.
https://doi.org/10.5937/hraIsh2102015J
Jovanović AA, Petrović P, Đorđević V, Zdunić G, Šavikin K, Bugarski B. Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques. in Hrana i ishrana. 2021;62(2):15-20.
doi:10.5937/hraIsh2102015J .
Jovanović, Aleksandra A., Petrović, Predrag, Đorđević, Verica, Zdunić, Gordana, Šavikin, Katarina, Bugarski, Branko, "Free radicals' scavenging capacity of Thymus serpyllum L. extracts depending on applied extraction conditions and extraction techniques" in Hrana i ishrana, 62, no. 2 (2021):15-20,
https://doi.org/10.5937/hraIsh2102015J . .
3

The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts

Jovanović, Aleksandra A.; Petrović, Predrag; Đorđević, Verica; Zdunić, Gordana; Šavikin, Katarina; Nedović, Viktor; Bugarski, Branko

(Serbian Nutrition Society, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Petrović, Predrag
AU  - Đorđević, Verica
AU  - Zdunić, Gordana
AU  - Šavikin, Katarina
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6441
AB  - The aim of the present study was the investigation of the impact of different extraction
conditions (particle size of plant material, solvent-to-solid ratio and solvent type) and
extraction techniques (maceration, heat- and ultrasound-assisted extractions) on the antioxidant activity of wild thyme (Thymus serpyllum L.) extracts. Liquid wild thyme extracts
were obtained in maceration (in shaker at 25°C), in heat-assisted extraction (in incubator
shaker at 80°C) and in ultrasound-assisted extraction (by ultrasound probe at amplitude of
80%) using three particle sizes (0.3, 0.7, and 1.5 mm), three solvent-to-solid ratios (10:1,
20:1, and 30:1), and three ethanol concentrations (0, 30 and 50 % ethanol). Antioxidant
potential of the obtained extracts was determined using ABTS and DPPH assays. The statistical analysis was performed by using statistical software, STATISTICA 7.0 (analysis of
variance and Duncan’s post-hoc test); the difference was considered statistically significant
at p<0.05. According to the results, higher degree of herbal drug disintegration resulted
with better antioxidant activity, but this effect was statistically significant for heat- and ultrasound-assisted extractions according to ABTS assay, and for maceration and heat-assisted
extraction according to DPPH assay. According to the influence of solvent-to-solid ratio, the
increase in ratio from 10:1 to 30:1 resulted in the extracts with higher antioxidant potential
regardless of the type of extraction method. Furthermore, in comparison to aqueous wild
thyme extracts the antioxidant activity of ethanol extracts was higher, particularly in the
case of 50 % ethanol extracts. In ABTS assay, there were no differences between antioxidant
activity of the extracts obtained by different extraction procedures, while in neutralization
of DPPH radicals, the extracts obtained using ultrasonic probe had statistically significantly
higher antioxidant potential. Due to the antioxidant properties shown in the present study,
wild thyme ethanol extract may be used in the formulations in food, pharmaceutical, and
cosmetic industries.
PB  - Serbian Nutrition Society
C3  - 14th Congress of Nutrition
T1  - The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts
EP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6441
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Petrović, Predrag and Đorđević, Verica and Zdunić, Gordana and Šavikin, Katarina and Nedović, Viktor and Bugarski, Branko",
year = "2021",
abstract = "The aim of the present study was the investigation of the impact of different extraction
conditions (particle size of plant material, solvent-to-solid ratio and solvent type) and
extraction techniques (maceration, heat- and ultrasound-assisted extractions) on the antioxidant activity of wild thyme (Thymus serpyllum L.) extracts. Liquid wild thyme extracts
were obtained in maceration (in shaker at 25°C), in heat-assisted extraction (in incubator
shaker at 80°C) and in ultrasound-assisted extraction (by ultrasound probe at amplitude of
80%) using three particle sizes (0.3, 0.7, and 1.5 mm), three solvent-to-solid ratios (10:1,
20:1, and 30:1), and three ethanol concentrations (0, 30 and 50 % ethanol). Antioxidant
potential of the obtained extracts was determined using ABTS and DPPH assays. The statistical analysis was performed by using statistical software, STATISTICA 7.0 (analysis of
variance and Duncan’s post-hoc test); the difference was considered statistically significant
at p<0.05. According to the results, higher degree of herbal drug disintegration resulted
with better antioxidant activity, but this effect was statistically significant for heat- and ultrasound-assisted extractions according to ABTS assay, and for maceration and heat-assisted
extraction according to DPPH assay. According to the influence of solvent-to-solid ratio, the
increase in ratio from 10:1 to 30:1 resulted in the extracts with higher antioxidant potential
regardless of the type of extraction method. Furthermore, in comparison to aqueous wild
thyme extracts the antioxidant activity of ethanol extracts was higher, particularly in the
case of 50 % ethanol extracts. In ABTS assay, there were no differences between antioxidant
activity of the extracts obtained by different extraction procedures, while in neutralization
of DPPH radicals, the extracts obtained using ultrasonic probe had statistically significantly
higher antioxidant potential. Due to the antioxidant properties shown in the present study,
wild thyme ethanol extract may be used in the formulations in food, pharmaceutical, and
cosmetic industries.",
publisher = "Serbian Nutrition Society",
journal = "14th Congress of Nutrition",
title = "The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts",
pages = "76",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6441"
}
Jovanović, A. A., Petrović, P., Đorđević, V., Zdunić, G., Šavikin, K., Nedović, V.,& Bugarski, B.. (2021). The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts. in 14th Congress of Nutrition
Serbian Nutrition Society..
https://hdl.handle.net/21.15107/rcub_technorep_6441
Jovanović AA, Petrović P, Đorđević V, Zdunić G, Šavikin K, Nedović V, Bugarski B. The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts. in 14th Congress of Nutrition. 2021;:null-76.
https://hdl.handle.net/21.15107/rcub_technorep_6441 .
Jovanović, Aleksandra A., Petrović, Predrag, Đorđević, Verica, Zdunić, Gordana, Šavikin, Katarina, Nedović, Viktor, Bugarski, Branko, "The influence of different extraction conditions and extraction techniques on antioxidant activity of wild thyme extracts" in 14th Congress of Nutrition (2021),
https://hdl.handle.net/21.15107/rcub_technorep_6441 .

Thymus serpyllum extract loaded liposomes produced by proliposome method

Jovanović, Aleksandra A.; Balanč, Bojana; Petrović, Predrag; Đorđević, Verica; Šavikin, Katarina; Zdunić, Gordana; Bugarski, Branko

(University of Belgrade, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana
AU  - Petrović, Predrag
AU  - Đorđević, Verica
AU  - Šavikin, Katarina
AU  - Zdunić, Gordana
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6410
AB  - Polyphenols, as secondary metabolites from plants, are used as food complements or ingredients
within the pharmaceutical or cosmetic formulations. However, their use is rather limited, due to
their low bioavailability, integrity, permeability, and solubility. Namely, polyphenols’ sensitivity to
environmental factors during food processing, distribution, or storage, or in the gastrointestinal
tract, also limit their activity and the potential health benefits. Thus, the encapsulation of
polyphenol extracts represents an appropriate way to overcome the mentioned disadvantages.
Thymus serpyllum L. ethanol extract obtained in heat-assisted extraction (80°C), rich in polyphenol
compounds, was encapsulated into liposomes produced using phospholipids and proliposome
method. Total polyphenol content in extract and encapsulation efficiency were determined using the
Folin-Ciocalteu procedure. Particle size, polydispersity index, and zeta potential of empty and
extract loaded liposomes were measured during 28 days using photon correlation spectroscopy.
Total polyphenol content of the extract was amounted to 2.08±0.14 mg of gallic acid
equivalents/mL, whereas encapsulation efficiency was 89.4±0.8%. During the 28-days stability
study, the particle size of empty liposomes varied between 420.6±4.3 and 581.6±3.4 nm with
polydispersity index from 0.109±0.067 to 0.295±0.009, while the size of extract loaded liposomes
was between 278.7±1.5 and 456.4±9.3 nm with polydispersity index 0.179±0.094 to 0.284±0.005.
Zeta potential of empty liposomes varied from -17.1±0.2 to -27.3±0.5 mV, whereas the zeta
potential of extract loaded liposomes was between -13.6±0.3 and -25.4±1.4 mV. The aim of this
study is to provide evidence for food manufacturers and food scientists to make broader use of T.
serpyllum loaded liposomes that can add value and improve the quality of existing food,
pharmaceutical and cosmetic products.
PB  - University of Belgrade
C3  - 2nd International UNIfood Conference
T1  - Thymus serpyllum extract loaded liposomes produced by proliposome method
EP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6410
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Balanč, Bojana and Petrović, Predrag and Đorđević, Verica and Šavikin, Katarina and Zdunić, Gordana and Bugarski, Branko",
year = "2021",
abstract = "Polyphenols, as secondary metabolites from plants, are used as food complements or ingredients
within the pharmaceutical or cosmetic formulations. However, their use is rather limited, due to
their low bioavailability, integrity, permeability, and solubility. Namely, polyphenols’ sensitivity to
environmental factors during food processing, distribution, or storage, or in the gastrointestinal
tract, also limit their activity and the potential health benefits. Thus, the encapsulation of
polyphenol extracts represents an appropriate way to overcome the mentioned disadvantages.
Thymus serpyllum L. ethanol extract obtained in heat-assisted extraction (80°C), rich in polyphenol
compounds, was encapsulated into liposomes produced using phospholipids and proliposome
method. Total polyphenol content in extract and encapsulation efficiency were determined using the
Folin-Ciocalteu procedure. Particle size, polydispersity index, and zeta potential of empty and
extract loaded liposomes were measured during 28 days using photon correlation spectroscopy.
Total polyphenol content of the extract was amounted to 2.08±0.14 mg of gallic acid
equivalents/mL, whereas encapsulation efficiency was 89.4±0.8%. During the 28-days stability
study, the particle size of empty liposomes varied between 420.6±4.3 and 581.6±3.4 nm with
polydispersity index from 0.109±0.067 to 0.295±0.009, while the size of extract loaded liposomes
was between 278.7±1.5 and 456.4±9.3 nm with polydispersity index 0.179±0.094 to 0.284±0.005.
Zeta potential of empty liposomes varied from -17.1±0.2 to -27.3±0.5 mV, whereas the zeta
potential of extract loaded liposomes was between -13.6±0.3 and -25.4±1.4 mV. The aim of this
study is to provide evidence for food manufacturers and food scientists to make broader use of T.
serpyllum loaded liposomes that can add value and improve the quality of existing food,
pharmaceutical and cosmetic products.",
publisher = "University of Belgrade",
journal = "2nd International UNIfood Conference",
title = "Thymus serpyllum extract loaded liposomes produced by proliposome method",
pages = "144",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6410"
}
Jovanović, A. A., Balanč, B., Petrović, P., Đorđević, V., Šavikin, K., Zdunić, G.,& Bugarski, B.. (2021). Thymus serpyllum extract loaded liposomes produced by proliposome method. in 2nd International UNIfood Conference
University of Belgrade..
https://hdl.handle.net/21.15107/rcub_technorep_6410
Jovanović AA, Balanč B, Petrović P, Đorđević V, Šavikin K, Zdunić G, Bugarski B. Thymus serpyllum extract loaded liposomes produced by proliposome method. in 2nd International UNIfood Conference. 2021;:null-144.
https://hdl.handle.net/21.15107/rcub_technorep_6410 .
Jovanović, Aleksandra A., Balanč, Bojana, Petrović, Predrag, Đorđević, Verica, Šavikin, Katarina, Zdunić, Gordana, Bugarski, Branko, "Thymus serpyllum extract loaded liposomes produced by proliposome method" in 2nd International UNIfood Conference (2021),
https://hdl.handle.net/21.15107/rcub_technorep_6410 .

The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme

Jovanović, Aleksandra; Petrović, Predrag; Đorđević, Verica; Mijin, Dušan; Zdunić, Gordana; Šavikin, Katarina; Bugarski, Branko

(Faculty of Technology, Zvornik, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra
AU  - Petrović, Predrag
AU  - Đorđević, Verica
AU  - Mijin, Dušan
AU  - Zdunić, Gordana
AU  - Šavikin, Katarina
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6443
AB  - Aromatic plants are commercially important and find wide use in food and pharmaceutical
industry, because of health benefits related with their antioxidant, antimicrobial, antiinflammatory, cardioprotective, cytotoxic, expectorant, anti-spasmodic and stimulant effects.
Most of phytochemicals are impossible to synthesize, therefore the best option is their extraction
from natural sources. Microwave-assisted extraction offers a rapid delivery of energy to a total
volume of solvent and solid plant material, improving the recovery of polyphenols. In the study,
wild thyme herb was evaluated as a source of polyphenols, which were extracted by the
application of microwaves instead of the traditional extraction techniques. The objective of the
present study was optimization of microwave-assisted extraction process through varying
irradiation time (5-180 s), temperature (60-200°C), particle size (0.3, 0.7 and 1.5 mm), solventto-solid ratio (10:1, 20:1, 30:1 and 40:1) and ethanol concentration in the extraction medium (0-
60%). Extraction efficiency was expressed via total polyphenol content (Folin-Ciocalteu method)
and antioxidant activity (ABTS radical scavenging method). The statistical analysis (one-way
ANOVA and Duncan's post-hoc test) has revealed that irradiation time above 15 s and particle
size have not shown statistically significant influence on polyphenol yield, while there were
significant differences between extracts obtained by various temperatures and solvent-to-solid
ratios. Although the highest polyphenol yield has achieved by using 50% of ethanol, there was
no statistically significant difference between ethanol concentration in the range from 30% to
50%. The highest polyphenol yield and antioxidant activity were achived in the extract with
particle size of 0.3 mm, 30:1 ratio and 50% ethanol, after 15 s, at 200°C (45.11 mg GAE/L and
27.22 µmol/L Trolox). According to the presented results, microwave-assisted extraction may be
used as an efficient and time saving alternative to traditional extraction techniques for extraction
of bioactive polyphenolic compounds from wild thyme.
PB  - Faculty of Technology, Zvornik
C3  - VII International Congress “Engineering, Environment and Materials in Process Industry“ - EEM
T1  - The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme
EP  - 143
SP  - 137
DO  - 10.7251/EEMEN2101137J
ER  - 
@conference{
author = "Jovanović, Aleksandra and Petrović, Predrag and Đorđević, Verica and Mijin, Dušan and Zdunić, Gordana and Šavikin, Katarina and Bugarski, Branko",
year = "2021",
abstract = "Aromatic plants are commercially important and find wide use in food and pharmaceutical
industry, because of health benefits related with their antioxidant, antimicrobial, antiinflammatory, cardioprotective, cytotoxic, expectorant, anti-spasmodic and stimulant effects.
Most of phytochemicals are impossible to synthesize, therefore the best option is their extraction
from natural sources. Microwave-assisted extraction offers a rapid delivery of energy to a total
volume of solvent and solid plant material, improving the recovery of polyphenols. In the study,
wild thyme herb was evaluated as a source of polyphenols, which were extracted by the
application of microwaves instead of the traditional extraction techniques. The objective of the
present study was optimization of microwave-assisted extraction process through varying
irradiation time (5-180 s), temperature (60-200°C), particle size (0.3, 0.7 and 1.5 mm), solventto-solid ratio (10:1, 20:1, 30:1 and 40:1) and ethanol concentration in the extraction medium (0-
60%). Extraction efficiency was expressed via total polyphenol content (Folin-Ciocalteu method)
and antioxidant activity (ABTS radical scavenging method). The statistical analysis (one-way
ANOVA and Duncan's post-hoc test) has revealed that irradiation time above 15 s and particle
size have not shown statistically significant influence on polyphenol yield, while there were
significant differences between extracts obtained by various temperatures and solvent-to-solid
ratios. Although the highest polyphenol yield has achieved by using 50% of ethanol, there was
no statistically significant difference between ethanol concentration in the range from 30% to
50%. The highest polyphenol yield and antioxidant activity were achived in the extract with
particle size of 0.3 mm, 30:1 ratio and 50% ethanol, after 15 s, at 200°C (45.11 mg GAE/L and
27.22 µmol/L Trolox). According to the presented results, microwave-assisted extraction may be
used as an efficient and time saving alternative to traditional extraction techniques for extraction
of bioactive polyphenolic compounds from wild thyme.",
publisher = "Faculty of Technology, Zvornik",
journal = "VII International Congress “Engineering, Environment and Materials in Process Industry“ - EEM",
title = "The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme",
pages = "143-137",
doi = "10.7251/EEMEN2101137J"
}
Jovanović, A., Petrović, P., Đorđević, V., Mijin, D., Zdunić, G., Šavikin, K.,& Bugarski, B.. (2021). The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme. in VII International Congress “Engineering, Environment and Materials in Process Industry“ - EEM
Faculty of Technology, Zvornik., 137-143.
https://doi.org/10.7251/EEMEN2101137J
Jovanović A, Petrović P, Đorđević V, Mijin D, Zdunić G, Šavikin K, Bugarski B. The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme. in VII International Congress “Engineering, Environment and Materials in Process Industry“ - EEM. 2021;:137-143.
doi:10.7251/EEMEN2101137J .
Jovanović, Aleksandra, Petrović, Predrag, Đorđević, Verica, Mijin, Dušan, Zdunić, Gordana, Šavikin, Katarina, Bugarski, Branko, "The influence of different microwave-assisted extraction conditions on polyphenol yield and antioxidant activity of wild thyme" in VII International Congress “Engineering, Environment and Materials in Process Industry“ - EEM (2021):137-143,
https://doi.org/10.7251/EEMEN2101137J . .

Characterization of lyophilized alginate beads with Rosa canina L extract

Jovanović, Aleksandra A.; Balanč, Bojana; Đorđević, Verica; Živković, Jelena; Šavikin, Katarina; Nedović, Viktor; Bugarski, Branko

(Serbian Nutrition Society, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana
AU  - Đorđević, Verica
AU  - Živković, Jelena
AU  - Šavikin, Katarina
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6440
AB  - The aim of the present study was the characterization of lyophilized alginate beads with
Rosa canina extract via determination of encapsulation efficiency, total polyphenol and
flavonoid contents, antioxidant capacity, particle size, sphericity factor and polyphenol release in distilled water medium. Electrostatic extrusion process was carried out to obtain calcium-alginate beads with encapsulated R. canina extract, which further lyophilized in freeze
dryer at -75°C and pressure of 0.011 mbar for 24 h and at -65°C and pressure of 0.054 mbar
for 1 h. The total polyphenol content was evaluated spectrophotometrically using modified
Folin-Ciocalteu method, whereas total flavonoid content was determined using colorimetric assay; antioxidant capacity was analyzed in ABTS and DPPH assays. Total polyphenol
and flavonoid contents in lyophilized R. canina extract loaded beads were 68.9±0.4 mg gallic
acid equivalents/g of lyophilized beads and 37.1±3.8 mg catechin equivalents/g, respectively. Thus, determined encapsulation efficiency of polyphenols was 55.1±0.3 %. In ABTS assay,
antioxidant activity of lyophilized extract loaded beads was 10.7±0.1 mg Trolox/g, whereas
in DPPH assay, IC50 of lyophilized beads was 4.11±0.02 mg/mL. The size of the lyophilized
R. canina extract encapsulated particles with extract was 460.7±47.7 µm and sphericity factor was 0.12±0.08. In distilled water as a medium, most of polyphenols of lyophilized R.
canina extract loaded beads were released in the first 30 min, and the maximum release plateau was reached at 90 min. Lyophilized R. canina extract loaded alginate beads developed
in this study have potential to be used in food, pharmacological and cosmetic industries,
with the aim to improve functionality, bioavailability and stability of the products.
PB  - Serbian Nutrition Society
C3  - 14th Congress of Nutrition Belgrade, Serbia
T1  - Characterization of lyophilized alginate beads with Rosa canina L extract
EP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6440
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Balanč, Bojana and Đorđević, Verica and Živković, Jelena and Šavikin, Katarina and Nedović, Viktor and Bugarski, Branko",
year = "2021",
abstract = "The aim of the present study was the characterization of lyophilized alginate beads with
Rosa canina extract via determination of encapsulation efficiency, total polyphenol and
flavonoid contents, antioxidant capacity, particle size, sphericity factor and polyphenol release in distilled water medium. Electrostatic extrusion process was carried out to obtain calcium-alginate beads with encapsulated R. canina extract, which further lyophilized in freeze
dryer at -75°C and pressure of 0.011 mbar for 24 h and at -65°C and pressure of 0.054 mbar
for 1 h. The total polyphenol content was evaluated spectrophotometrically using modified
Folin-Ciocalteu method, whereas total flavonoid content was determined using colorimetric assay; antioxidant capacity was analyzed in ABTS and DPPH assays. Total polyphenol
and flavonoid contents in lyophilized R. canina extract loaded beads were 68.9±0.4 mg gallic
acid equivalents/g of lyophilized beads and 37.1±3.8 mg catechin equivalents/g, respectively. Thus, determined encapsulation efficiency of polyphenols was 55.1±0.3 %. In ABTS assay,
antioxidant activity of lyophilized extract loaded beads was 10.7±0.1 mg Trolox/g, whereas
in DPPH assay, IC50 of lyophilized beads was 4.11±0.02 mg/mL. The size of the lyophilized
R. canina extract encapsulated particles with extract was 460.7±47.7 µm and sphericity factor was 0.12±0.08. In distilled water as a medium, most of polyphenols of lyophilized R.
canina extract loaded beads were released in the first 30 min, and the maximum release plateau was reached at 90 min. Lyophilized R. canina extract loaded alginate beads developed
in this study have potential to be used in food, pharmacological and cosmetic industries,
with the aim to improve functionality, bioavailability and stability of the products.",
publisher = "Serbian Nutrition Society",
journal = "14th Congress of Nutrition Belgrade, Serbia",
title = "Characterization of lyophilized alginate beads with Rosa canina L extract",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6440"
}
Jovanović, A. A., Balanč, B., Đorđević, V., Živković, J., Šavikin, K., Nedović, V.,& Bugarski, B.. (2021). Characterization of lyophilized alginate beads with Rosa canina L extract. in 14th Congress of Nutrition Belgrade, Serbia
Serbian Nutrition Society..
https://hdl.handle.net/21.15107/rcub_technorep_6440
Jovanović AA, Balanč B, Đorđević V, Živković J, Šavikin K, Nedović V, Bugarski B. Characterization of lyophilized alginate beads with Rosa canina L extract. in 14th Congress of Nutrition Belgrade, Serbia. 2021;:null-83.
https://hdl.handle.net/21.15107/rcub_technorep_6440 .
Jovanović, Aleksandra A., Balanč, Bojana, Đorđević, Verica, Živković, Jelena, Šavikin, Katarina, Nedović, Viktor, Bugarski, Branko, "Characterization of lyophilized alginate beads with Rosa canina L extract" in 14th Congress of Nutrition Belgrade, Serbia (2021),
https://hdl.handle.net/21.15107/rcub_technorep_6440 .

Encapsulation of Rosa canina extract in liposomes produced by thin film method

Jovanović, Aleksandra A.; Balanč, Bojana; Trajković, Milica; Đorđević, Verica; Šavikin, Katarina; Živković, Jelena; Bugarski, Branko

(University of Belgrade, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana
AU  - Trajković, Milica
AU  - Đorđević, Verica
AU  - Šavikin, Katarina
AU  - Živković, Jelena
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6411
AB  - Rosa canina pseudo-fruit is rich in bioactive substances, such are carotenoids, ascorbic acid,
polyphenols, fatty acids and minerals. Because of its diuretic, anti-inflammatory, anti-allergic and
antioxidant properties it is frequently employed in traditional medicine. However, in order to
protect mentioned bioactive compounds and to improve its bioavailability and controlled release,
numerous encapsulation methods have been developed. Thus, R. canina ethanol extract obtained
using percolation at ambient temperature (25°C), was encapsulated into Lipoid G liposomes
produced in thin film procedure. Total polyphenol and flavonoid contents, as well as antioxidant
potential of the extract and extract loaded liposomes were determined. Encapsulation efficiency,
particle size, polydispersity index and zeta potential of the liposomes with extract were monitoring
during 30 days. Total polyphenol and flavonoid contents of the extract were 103.8±1.9 mg of gallic
acid equivalents/g of the extract and 64.2±2.4 mg of catechin equivalents/g of the extract,
respectively; antioxidant potential of the extract was 15.3±2.1 mg of Trolox equivalents/g of the
extract (ABTS assay) and 1.07±0.01 mg/mL of the extract (DPPH assay). Total polyphenol and
flavonoid contents of the extract loaded liposomes were 0.316±0.023 mg of gallic acid
equivalents/mg of lipids and 0.219±0.009 mg of catechin equivalents/mg of lipids, respectively;
antioxidant potential of the sample was 0.134±0.004 mg of Trolox equivalents/mg of lipids (ABTS
assay) and 270.6±10.5 mg/mL of liposomal suspension (DPPH assay). Encapsulation efficiency
was the same during monitoring period and it was amounted 46.6±3.4%. Particle size and
polydispersity index of the liposomes with extract were increased from 618.2±10.9 to 1698.0±104.2
nm and from 0.441±0.007 to 0.589±0.011, respectively, during 30 days. On the other hand, zeta
potential of the extract loaded liposomes was decreased from -10.24±0.95 to -7.21±0.77 mV. R.
canina extract loaded liposomes developed in this study have potential to be used in food,
pharmacological and cosmetic industries due to beneficial health effects of R. canina active
compounds encapsulated into liposomes.
PB  - University of Belgrade
C3  - 2nd International UNIfood Conference
T1  - Encapsulation of Rosa canina extract in liposomes produced by thin film method
EP  - 176
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6411
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Balanč, Bojana and Trajković, Milica and Đorđević, Verica and Šavikin, Katarina and Živković, Jelena and Bugarski, Branko",
year = "2021",
abstract = "Rosa canina pseudo-fruit is rich in bioactive substances, such are carotenoids, ascorbic acid,
polyphenols, fatty acids and minerals. Because of its diuretic, anti-inflammatory, anti-allergic and
antioxidant properties it is frequently employed in traditional medicine. However, in order to
protect mentioned bioactive compounds and to improve its bioavailability and controlled release,
numerous encapsulation methods have been developed. Thus, R. canina ethanol extract obtained
using percolation at ambient temperature (25°C), was encapsulated into Lipoid G liposomes
produced in thin film procedure. Total polyphenol and flavonoid contents, as well as antioxidant
potential of the extract and extract loaded liposomes were determined. Encapsulation efficiency,
particle size, polydispersity index and zeta potential of the liposomes with extract were monitoring
during 30 days. Total polyphenol and flavonoid contents of the extract were 103.8±1.9 mg of gallic
acid equivalents/g of the extract and 64.2±2.4 mg of catechin equivalents/g of the extract,
respectively; antioxidant potential of the extract was 15.3±2.1 mg of Trolox equivalents/g of the
extract (ABTS assay) and 1.07±0.01 mg/mL of the extract (DPPH assay). Total polyphenol and
flavonoid contents of the extract loaded liposomes were 0.316±0.023 mg of gallic acid
equivalents/mg of lipids and 0.219±0.009 mg of catechin equivalents/mg of lipids, respectively;
antioxidant potential of the sample was 0.134±0.004 mg of Trolox equivalents/mg of lipids (ABTS
assay) and 270.6±10.5 mg/mL of liposomal suspension (DPPH assay). Encapsulation efficiency
was the same during monitoring period and it was amounted 46.6±3.4%. Particle size and
polydispersity index of the liposomes with extract were increased from 618.2±10.9 to 1698.0±104.2
nm and from 0.441±0.007 to 0.589±0.011, respectively, during 30 days. On the other hand, zeta
potential of the extract loaded liposomes was decreased from -10.24±0.95 to -7.21±0.77 mV. R.
canina extract loaded liposomes developed in this study have potential to be used in food,
pharmacological and cosmetic industries due to beneficial health effects of R. canina active
compounds encapsulated into liposomes.",
publisher = "University of Belgrade",
journal = "2nd International UNIfood Conference",
title = "Encapsulation of Rosa canina extract in liposomes produced by thin film method",
pages = "176",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6411"
}
Jovanović, A. A., Balanč, B., Trajković, M., Đorđević, V., Šavikin, K., Živković, J.,& Bugarski, B.. (2021). Encapsulation of Rosa canina extract in liposomes produced by thin film method. in 2nd International UNIfood Conference
University of Belgrade..
https://hdl.handle.net/21.15107/rcub_technorep_6411
Jovanović AA, Balanč B, Trajković M, Đorđević V, Šavikin K, Živković J, Bugarski B. Encapsulation of Rosa canina extract in liposomes produced by thin film method. in 2nd International UNIfood Conference. 2021;:null-176.
https://hdl.handle.net/21.15107/rcub_technorep_6411 .
Jovanović, Aleksandra A., Balanč, Bojana, Trajković, Milica, Đorđević, Verica, Šavikin, Katarina, Živković, Jelena, Bugarski, Branko, "Encapsulation of Rosa canina extract in liposomes produced by thin film method" in 2nd International UNIfood Conference (2021),
https://hdl.handle.net/21.15107/rcub_technorep_6411 .

Alginate-based encapsulation of polyphenols from Rosa canina L. extract

Jovanović, Aleksandra A.; Balanč, Bojana; Šavikin, Katarina; Živković, Jelena; Đorđević, Verica; Bugarski, Branko

(Faculty of Technology, Zvornik, 2021)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana
AU  - Šavikin, Katarina
AU  - Živković, Jelena
AU  - Đorđević, Verica
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6442
AB  - Rosa canina L. (Rosaceae) is frequently employed in traditional medicine, due to its diuretic,
anti-inflammatory, anti-allergic, antioxidant and analgesic effects. It is rich in various bioactive
compounds, including polyphenols, carotenoids, ascorbic acid, mineral elements and fatty acids.
Microencapsulation tehnique is a promising tool for improving R. canina polyphenols'
functionality, stability and bioavailability. Еlectrostatic extrusion process was carried out to
obtain calcium-alginate beads with encapsulated R. canina extract. In pure extract, total
polyphenol content was 103.8±1.9 mg GAE/g, whereas the concentration of flavonoids was
64.2±2.40 mg CE/g. Furthermore, polyphenol and flavonoid contents in extract loaded hydrogel
beads were 4.68±0.12 mg GAE/g and 2.93±0.23 mg CE/g, respectively. Thus, determined
encapsulation efficiency was 45.04±1.15%. In ABTS test, antioxidant activity of pure extract and
extract loaded hydrogel beads was 15.30±2.10 and 2.93±0.23 mg Trolox/g, respectively. In
DPPH test, IC50 of pure extract and extract loaded hydrogel beads was 1.07±0.01 and
29.32±2.15 mg/mL, respectively. The size of the produced R. canina extract encapsulated
hydrogel particles was 550.30±34.56 µm. In distilled water as a medium, most of polyphenols
were released relatively rapidly from alginate beads (in the first 20 min), and the maximum
release plateau was reached at 60 min. This study demonstrates the potential of using alginate
for encapsulation of R. canina polyphenols, with the aim to improve their functionality,
bioavailability and stability in food, cosmetic and pharmaceutical products.
PB  - Faculty of Technology, Zvornik
C3  - VII International Congress “Engineering, Environment and Materials in Process Industry“
T1  - Alginate-based encapsulation of polyphenols from Rosa canina L. extract
EP  - 136
SP  - 131
DO  - 10.7251/EEMEN2101131J
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Balanč, Bojana and Šavikin, Katarina and Živković, Jelena and Đorđević, Verica and Bugarski, Branko",
year = "2021",
abstract = "Rosa canina L. (Rosaceae) is frequently employed in traditional medicine, due to its diuretic,
anti-inflammatory, anti-allergic, antioxidant and analgesic effects. It is rich in various bioactive
compounds, including polyphenols, carotenoids, ascorbic acid, mineral elements and fatty acids.
Microencapsulation tehnique is a promising tool for improving R. canina polyphenols'
functionality, stability and bioavailability. Еlectrostatic extrusion process was carried out to
obtain calcium-alginate beads with encapsulated R. canina extract. In pure extract, total
polyphenol content was 103.8±1.9 mg GAE/g, whereas the concentration of flavonoids was
64.2±2.40 mg CE/g. Furthermore, polyphenol and flavonoid contents in extract loaded hydrogel
beads were 4.68±0.12 mg GAE/g and 2.93±0.23 mg CE/g, respectively. Thus, determined
encapsulation efficiency was 45.04±1.15%. In ABTS test, antioxidant activity of pure extract and
extract loaded hydrogel beads was 15.30±2.10 and 2.93±0.23 mg Trolox/g, respectively. In
DPPH test, IC50 of pure extract and extract loaded hydrogel beads was 1.07±0.01 and
29.32±2.15 mg/mL, respectively. The size of the produced R. canina extract encapsulated
hydrogel particles was 550.30±34.56 µm. In distilled water as a medium, most of polyphenols
were released relatively rapidly from alginate beads (in the first 20 min), and the maximum
release plateau was reached at 60 min. This study demonstrates the potential of using alginate
for encapsulation of R. canina polyphenols, with the aim to improve their functionality,
bioavailability and stability in food, cosmetic and pharmaceutical products.",
publisher = "Faculty of Technology, Zvornik",
journal = "VII International Congress “Engineering, Environment and Materials in Process Industry“",
title = "Alginate-based encapsulation of polyphenols from Rosa canina L. extract",
pages = "136-131",
doi = "10.7251/EEMEN2101131J"
}
Jovanović, A. A., Balanč, B., Šavikin, K., Živković, J., Đorđević, V.,& Bugarski, B.. (2021). Alginate-based encapsulation of polyphenols from Rosa canina L. extract. in VII International Congress “Engineering, Environment and Materials in Process Industry“
Faculty of Technology, Zvornik., 131-136.
https://doi.org/10.7251/EEMEN2101131J
Jovanović AA, Balanč B, Šavikin K, Živković J, Đorđević V, Bugarski B. Alginate-based encapsulation of polyphenols from Rosa canina L. extract. in VII International Congress “Engineering, Environment and Materials in Process Industry“. 2021;:131-136.
doi:10.7251/EEMEN2101131J .
Jovanović, Aleksandra A., Balanč, Bojana, Šavikin, Katarina, Živković, Jelena, Đorđević, Verica, Bugarski, Branko, "Alginate-based encapsulation of polyphenols from Rosa canina L. extract" in VII International Congress “Engineering, Environment and Materials in Process Industry“ (2021):131-136,
https://doi.org/10.7251/EEMEN2101131J . .

Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material

Jovanović, Aleksandra; Levic, Steva M.; Pavlović, Vladimir B.; Markovic, Smilja B.; Pjanović, Rada; Đorđević, Verica; Nedović, Viktor; Bugarski, Branko

(2021)

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Levic, Steva M.
AU  - Pavlović, Vladimir B.
AU  - Markovic, Smilja B.
AU  - Pjanović, Rada
AU  - Đorđević, Verica
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4863
AB  - Freeze drying was compared with spray drying regarding feasibility to process wild thyme drugs in order to obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, and microwave-assisted extractions. Higher total powder yield (based on the dry weight prior to extraction) was achieved by freeze than spray drying and lower loss of total polyphenol content (TPC) and total flavonoid content (TFC) due to the drying process. Gelatin as a coating agent (5% w/w) provided better TPC recovery by 70% in case of lyophilization and higher total powder yield in case of spray drying by diminishing material deposition on the wall of the drying chamber. The resulting gelatin-free and gelatin-containing powders carried polyphenols in amount similar to 190 and 53-75 mg gallic acid equivalents GAE/g of powder, respectively. Microwave-assisted extract formulation was distinguished from the others by a higher content of polyphenols, proteins and sugars, higher bulk density and lower solubility. The type of the drying process mainly affected the position of the gelatin-derived -OH and amide bands in FTIR spectra. Spray-dried formulations compared to freeze-dried expressed higher thermal stability as confirmed by differential scanning calorimetry analysis and a higher diffusion coefficient; the last feature can be associated with the lower specific surface area of irregularly shaped freeze-dried particles (151-223 mu m) compared to small microspheres (similar to 8 mu m) in spray-dried powder.
T2  - Molecules
T1  - Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material
IS  - 13
VL  - 26
DO  - 10.3390/molecules26133933
ER  - 
@article{
author = "Jovanović, Aleksandra and Levic, Steva M. and Pavlović, Vladimir B. and Markovic, Smilja B. and Pjanović, Rada and Đorđević, Verica and Nedović, Viktor and Bugarski, Branko",
year = "2021",
abstract = "Freeze drying was compared with spray drying regarding feasibility to process wild thyme drugs in order to obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, and microwave-assisted extractions. Higher total powder yield (based on the dry weight prior to extraction) was achieved by freeze than spray drying and lower loss of total polyphenol content (TPC) and total flavonoid content (TFC) due to the drying process. Gelatin as a coating agent (5% w/w) provided better TPC recovery by 70% in case of lyophilization and higher total powder yield in case of spray drying by diminishing material deposition on the wall of the drying chamber. The resulting gelatin-free and gelatin-containing powders carried polyphenols in amount similar to 190 and 53-75 mg gallic acid equivalents GAE/g of powder, respectively. Microwave-assisted extract formulation was distinguished from the others by a higher content of polyphenols, proteins and sugars, higher bulk density and lower solubility. The type of the drying process mainly affected the position of the gelatin-derived -OH and amide bands in FTIR spectra. Spray-dried formulations compared to freeze-dried expressed higher thermal stability as confirmed by differential scanning calorimetry analysis and a higher diffusion coefficient; the last feature can be associated with the lower specific surface area of irregularly shaped freeze-dried particles (151-223 mu m) compared to small microspheres (similar to 8 mu m) in spray-dried powder.",
journal = "Molecules",
title = "Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material",
number = "13",
volume = "26",
doi = "10.3390/molecules26133933"
}
Jovanović, A., Levic, S. M., Pavlović, V. B., Markovic, S. B., Pjanović, R., Đorđević, V., Nedović, V.,& Bugarski, B.. (2021). Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material. in Molecules, 26(13).
https://doi.org/10.3390/molecules26133933
Jovanović A, Levic SM, Pavlović VB, Markovic SB, Pjanović R, Đorđević V, Nedović V, Bugarski B. Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material. in Molecules. 2021;26(13).
doi:10.3390/molecules26133933 .
Jovanović, Aleksandra, Levic, Steva M., Pavlović, Vladimir B., Markovic, Smilja B., Pjanović, Rada, Đorđević, Verica, Nedović, Viktor, Bugarski, Branko, "Freeze vs. Spray Drying for Dry Wild Thyme (Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material" in Molecules, 26, no. 13 (2021),
https://doi.org/10.3390/molecules26133933 . .
26
4
22

Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency

Petrović, Predrag; Ivanović, Katarina; Octrue, Charly; Tumara, Mica; Jovanović, Aleksandra; Vunduk, Jovana; Nikšić, Miomir; Pjanović, Rada; Bugarski, Branko; Klaus, Anita

(Savez hemijskih inženjera, Beograd, 2019)

TY  - JOUR
AU  - Petrović, Predrag
AU  - Ivanović, Katarina
AU  - Octrue, Charly
AU  - Tumara, Mica
AU  - Jovanović, Aleksandra
AU  - Vunduk, Jovana
AU  - Nikšić, Miomir
AU  - Pjanović, Rada
AU  - Bugarski, Branko
AU  - Klaus, Anita
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4105
AB  - Chaga (Inonotus obliquus) is a parasitic fungus, which has been used in traditional medicine in Russia and other northern European countries in the treatment of cancer, gastrointestinal andliver diseases. It has been a subject of intensive researchrecently, confirming many of its health-beneficial effects. In order to obtain a product that would allow modified and prolonged release of the Chaga's active metabolites, hot water Chaga extract was immobilized using calcium - alginate. The extract, which was predominantly composed of carbohydrates (57 %), also contained a relatively high amount of antioxidants/phenolic compounds (130 mg gallic acid equivalents per g of dry extract) and exhibited pronounced radical scavenging activity. It showed significant antibacterial activity as well, inhibiting growth of tested bacterial strains at concentrations of 1.25-20 mg/mL. Entrapment efficiency was about 80 %, and the extract-alginate system showed pH-dependant extract release; there was negligible release at pH 1.75 (gastric pH), and the release gradually increased with the increase in pH, reaching similar to 43 % of immobilized extract at pH 8.5 after 90 min. Such a product could be used as a dietary supplement, adjuvant in therapy of gastrointestinal diseases or as a food additive.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency
EP  - 335
IS  - 5
SP  - 325
VL  - 73
DO  - 10.2298/HEMIND190819028P
ER  - 
@article{
author = "Petrović, Predrag and Ivanović, Katarina and Octrue, Charly and Tumara, Mica and Jovanović, Aleksandra and Vunduk, Jovana and Nikšić, Miomir and Pjanović, Rada and Bugarski, Branko and Klaus, Anita",
year = "2019",
abstract = "Chaga (Inonotus obliquus) is a parasitic fungus, which has been used in traditional medicine in Russia and other northern European countries in the treatment of cancer, gastrointestinal andliver diseases. It has been a subject of intensive researchrecently, confirming many of its health-beneficial effects. In order to obtain a product that would allow modified and prolonged release of the Chaga's active metabolites, hot water Chaga extract was immobilized using calcium - alginate. The extract, which was predominantly composed of carbohydrates (57 %), also contained a relatively high amount of antioxidants/phenolic compounds (130 mg gallic acid equivalents per g of dry extract) and exhibited pronounced radical scavenging activity. It showed significant antibacterial activity as well, inhibiting growth of tested bacterial strains at concentrations of 1.25-20 mg/mL. Entrapment efficiency was about 80 %, and the extract-alginate system showed pH-dependant extract release; there was negligible release at pH 1.75 (gastric pH), and the release gradually increased with the increase in pH, reaching similar to 43 % of immobilized extract at pH 8.5 after 90 min. Such a product could be used as a dietary supplement, adjuvant in therapy of gastrointestinal diseases or as a food additive.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency",
pages = "335-325",
number = "5",
volume = "73",
doi = "10.2298/HEMIND190819028P"
}
Petrović, P., Ivanović, K., Octrue, C., Tumara, M., Jovanović, A., Vunduk, J., Nikšić, M., Pjanović, R., Bugarski, B.,& Klaus, A.. (2019). Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(5), 325-335.
https://doi.org/10.2298/HEMIND190819028P
Petrović P, Ivanović K, Octrue C, Tumara M, Jovanović A, Vunduk J, Nikšić M, Pjanović R, Bugarski B, Klaus A. Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency. in Hemijska industrija. 2019;73(5):325-335.
doi:10.2298/HEMIND190819028P .
Petrović, Predrag, Ivanović, Katarina, Octrue, Charly, Tumara, Mica, Jovanović, Aleksandra, Vunduk, Jovana, Nikšić, Miomir, Pjanović, Rada, Bugarski, Branko, Klaus, Anita, "Immobilization of Chaga extract in alginate beads for modified release: simplicity meets efficiency" in Hemijska industrija, 73, no. 5 (2019):325-335,
https://doi.org/10.2298/HEMIND190819028P . .
8
4

The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products

Petrović, Predrag; Ivanović, Katarina; Jovanović, Aleksandra; Simović, Milica; Milutinović, Violeta; Kozarski, Maja; Petković, Miloš; Cvetković, Anka; Klaus, Anita; Bugarski, Branko

(Srpsko biološko društvo, Beograd, i dr., 2019)

TY  - JOUR
AU  - Petrović, Predrag
AU  - Ivanović, Katarina
AU  - Jovanović, Aleksandra
AU  - Simović, Milica
AU  - Milutinović, Violeta
AU  - Kozarski, Maja
AU  - Petković, Miloš
AU  - Cvetković, Anka
AU  - Klaus, Anita
AU  - Bugarski, Branko
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4122
AB  - Puffballs are fungi that produce globose fruiting bodies that undergo autolysis, transforming their insides into a spore bearing, powdery mass. Mature fruiting bodies are traditionally used to treat open skin wounds. In this study, methanol extracts of two puffball species, Handkea excipuliformis and Vascellum pratense, were examined and compared in order to provide insight into the changes these mushrooms undergo during maturation, with respect to their potential use in skin care and wound treatment. Some compounds involved in skin care and regeneration were quantified, and it was found that maturation increases the concentrations of almost all of these compounds. Antioxidant activity was also more pronounced in mature fruiting body extracts, which was in correlation with the higher content of antioxidants. Tyrosinase inhibition was vastly improved with autolysis, correlating with the higher phenolic content in mature fruiting body extracts. Antimicrobial activity was negatively affected by autolysis in the case of H. excipuliformis, whereas autolysis had little effect on the antimicrobial activity of V. pratense. Autolysis generally improved the biological activity and increased the concentrations of compounds involved in skin care, which justifies the traditional use of puffballs and makes them good candidates for various potential cosmetic and medicinal skin-care products.
PB  - Srpsko biološko društvo, Beograd, i dr.
T2  - Archives of Biological Sciences
T1  - The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products
EP  - 733
IS  - 4
SP  - 721
VL  - 71
DO  - 10.2298/ABS190725055P
ER  - 
@article{
author = "Petrović, Predrag and Ivanović, Katarina and Jovanović, Aleksandra and Simović, Milica and Milutinović, Violeta and Kozarski, Maja and Petković, Miloš and Cvetković, Anka and Klaus, Anita and Bugarski, Branko",
year = "2019",
abstract = "Puffballs are fungi that produce globose fruiting bodies that undergo autolysis, transforming their insides into a spore bearing, powdery mass. Mature fruiting bodies are traditionally used to treat open skin wounds. In this study, methanol extracts of two puffball species, Handkea excipuliformis and Vascellum pratense, were examined and compared in order to provide insight into the changes these mushrooms undergo during maturation, with respect to their potential use in skin care and wound treatment. Some compounds involved in skin care and regeneration were quantified, and it was found that maturation increases the concentrations of almost all of these compounds. Antioxidant activity was also more pronounced in mature fruiting body extracts, which was in correlation with the higher content of antioxidants. Tyrosinase inhibition was vastly improved with autolysis, correlating with the higher phenolic content in mature fruiting body extracts. Antimicrobial activity was negatively affected by autolysis in the case of H. excipuliformis, whereas autolysis had little effect on the antimicrobial activity of V. pratense. Autolysis generally improved the biological activity and increased the concentrations of compounds involved in skin care, which justifies the traditional use of puffballs and makes them good candidates for various potential cosmetic and medicinal skin-care products.",
publisher = "Srpsko biološko društvo, Beograd, i dr.",
journal = "Archives of Biological Sciences",
title = "The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products",
pages = "733-721",
number = "4",
volume = "71",
doi = "10.2298/ABS190725055P"
}
Petrović, P., Ivanović, K., Jovanović, A., Simović, M., Milutinović, V., Kozarski, M., Petković, M., Cvetković, A., Klaus, A.,& Bugarski, B.. (2019). The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products. in Archives of Biological Sciences
Srpsko biološko društvo, Beograd, i dr.., 71(4), 721-733.
https://doi.org/10.2298/ABS190725055P
Petrović P, Ivanović K, Jovanović A, Simović M, Milutinović V, Kozarski M, Petković M, Cvetković A, Klaus A, Bugarski B. The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products. in Archives of Biological Sciences. 2019;71(4):721-733.
doi:10.2298/ABS190725055P .
Petrović, Predrag, Ivanović, Katarina, Jovanović, Aleksandra, Simović, Milica, Milutinović, Violeta, Kozarski, Maja, Petković, Miloš, Cvetković, Anka, Klaus, Anita, Bugarski, Branko, "The impact of puffball autolysis on selected chemical and biological properties: puffball extracts as potential ingredients of skin-care products" in Archives of Biological Sciences, 71, no. 4 (2019):721-733,
https://doi.org/10.2298/ABS190725055P . .
8
3
6

Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity

Jovanović, Aleksandra; Skrt, Mihaela; Petrović, Predrag; Janković-Častvan, Ivona; Zdunić, Gordana; Šavikin, Katarina; Bugarski, Branko

(Institute for Medicinal Plants Research "Dr. Josif Pancic", 2019)

TY  - JOUR
AU  - Jovanović, Aleksandra
AU  - Skrt, Mihaela
AU  - Petrović, Predrag
AU  - Janković-Častvan, Ivona
AU  - Zdunić, Gordana
AU  - Šavikin, Katarina
AU  - Bugarski, Branko
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4288
AB  - The aim of the present study was the optimization of the extraction conditions (particle size, solid-to-solvent ratio, extraction time and procedure) via total polyphenol content and radical scavenging activity, using wild thyme (Thymus serpyllum L.) as a natural source of polyphenols. According to the total polyphenols yield, particle size, solvent-to-solid ratio, and extraction technique have shown statistically significant influence, whereas the exposure time has not been a relevant factor. In all three extraction procedures (maceration, heat-and ultrasound-assisted extraction), the highest polyphenols yield was reached using the smallest plant particles and the highest solvent-to-solid ratio. Moreover, polyphenols content was significantly higher after ultrasound-assisted extraction, in comparison to the extraction at room and high temperature. According to the antioxidant recovery, the influence of different extraction parameters varied depending on the applied antioxidant tests and extraction procedures. 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid)-ABTS radical scavenging capacity of extracts followed the next trend: maceration and ultrasound-assisted extraction  gt  heat-assisted extraction , while in 2,2-diphenyl-1-picrylhydrazyl-DPPH neutralization: ultrasound-assisted extraction  gt  heat-assisted extraction  gt  gt  maceration. The study represents an important step in the formulation of antioxidant-rich extracts with potential use in food, pharmaceutical, and cosmetic industry.
PB  - Institute for Medicinal Plants Research "Dr. Josif Pancic"
T2  - Lekovite sirovine
T1  - Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity
EP  - 29
IS  - 39
SP  - 23
DO  - 10.5937/leksir1939023J
ER  - 
@article{
author = "Jovanović, Aleksandra and Skrt, Mihaela and Petrović, Predrag and Janković-Častvan, Ivona and Zdunić, Gordana and Šavikin, Katarina and Bugarski, Branko",
year = "2019",
abstract = "The aim of the present study was the optimization of the extraction conditions (particle size, solid-to-solvent ratio, extraction time and procedure) via total polyphenol content and radical scavenging activity, using wild thyme (Thymus serpyllum L.) as a natural source of polyphenols. According to the total polyphenols yield, particle size, solvent-to-solid ratio, and extraction technique have shown statistically significant influence, whereas the exposure time has not been a relevant factor. In all three extraction procedures (maceration, heat-and ultrasound-assisted extraction), the highest polyphenols yield was reached using the smallest plant particles and the highest solvent-to-solid ratio. Moreover, polyphenols content was significantly higher after ultrasound-assisted extraction, in comparison to the extraction at room and high temperature. According to the antioxidant recovery, the influence of different extraction parameters varied depending on the applied antioxidant tests and extraction procedures. 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid)-ABTS radical scavenging capacity of extracts followed the next trend: maceration and ultrasound-assisted extraction  gt  heat-assisted extraction , while in 2,2-diphenyl-1-picrylhydrazyl-DPPH neutralization: ultrasound-assisted extraction  gt  heat-assisted extraction  gt  gt  maceration. The study represents an important step in the formulation of antioxidant-rich extracts with potential use in food, pharmaceutical, and cosmetic industry.",
publisher = "Institute for Medicinal Plants Research "Dr. Josif Pancic"",
journal = "Lekovite sirovine",
title = "Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity",
pages = "29-23",
number = "39",
doi = "10.5937/leksir1939023J"
}
Jovanović, A., Skrt, M., Petrović, P., Janković-Častvan, I., Zdunić, G., Šavikin, K.,& Bugarski, B.. (2019). Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity. in Lekovite sirovine
Institute for Medicinal Plants Research "Dr. Josif Pancic".(39), 23-29.
https://doi.org/10.5937/leksir1939023J
Jovanović A, Skrt M, Petrović P, Janković-Častvan I, Zdunić G, Šavikin K, Bugarski B. Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity. in Lekovite sirovine. 2019;(39):23-29.
doi:10.5937/leksir1939023J .
Jovanović, Aleksandra, Skrt, Mihaela, Petrović, Predrag, Janković-Častvan, Ivona, Zdunić, Gordana, Šavikin, Katarina, Bugarski, Branko, "Ethanol Thymus serpyllum extracts: Evaluation of extraction conditions via total polyphenol content and radical scavenging activity" in Lekovite sirovine, no. 39 (2019):23-29,
https://doi.org/10.5937/leksir1939023J . .
4

Spray-dried extracts of Thymus serpyllum

Jovanović, Aleksandra A.; Petrović, Predrag M.; Đorđević, Verica B.; Častvan, Ivona M.; Lević, Steva M.; Zdunić, Gordana M.; Bugarski, Branko M.

(Faculty of Technology, Zvornik, 2019)

TY  - CONF
AU  - Jovanović, Aleksandra A.
AU  - Petrović, Predrag M.
AU  - Đorđević, Verica B.
AU  - Častvan, Ivona M.
AU  - Lević, Steva M.
AU  - Zdunić, Gordana M.
AU  - Bugarski, Branko M.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6457
AB  - In the present study, spray-dried Thymus serpyllum extracts obtained by using four extraction
techniques (maceration, heat-assisted extraction, extraction in ultrasound bath and extraction by
ultrasound probe) were characterized through determination of total polyphenols and total
flavonoids contents, antioxidant capacity, zeta potential, bulk density and solubility. Polyphenols
yield was statistically higher in the extract obtained by ultrasound probe, in comparison to the
extracts prepared using maceration, heat-assisted extraction and extraction in ultrasound bath.
On the other hand, extraction technique did not show statistically significant influence on the
flavonoids concentration. Furthermore, extraction procedures did not show significant effect on
antioxidant neutralization of DPPH radicals, while flavonoids yield had correlation with the
DPPH radical-scavenging capacity assay. However, the extracts obtained using maceration and
ultrasound waves (ultrasound bath) have shown significantly better antioxidant capacity in the
preservation of β-carotene, compared to the extracts prepared by using high temperature and
ultrasound probe. The extract obtained in maceration has shown statistically better stability
(higher absolute value of zeta potential), compared to the extracts prepared using high
temperature and ultrasound waves. According to the results of Pharmacopoeia test, bulk density
of spray-dried T. serpyllum extracts was ranked by significance in the following order: heatassisted extraction>ultrasound bath and ultrasound probe>maceration. Relatively high
solubility of spray-dried extracts has been found in the following order: maceration>ultrasound
bath and ultrasound probe>heat-assisted extraction. Spray-dried T. serpyllum extract prepared
using maceration represents a powder with satisfying physicochemical properties, as well as a
good source of substances with significant antioxidant activity, particularly in emulsions, which
enable its use in functional food and pharmaceutical products.
PB  - Faculty of Technology, Zvornik
C3  - VI International Congress: „Engineering, Environment and Materials in Processing Industry“
T1  - Spray-dried extracts of Thymus serpyllum
EP  - 200
SP  - 193
DO  - 10.7251/EEMEN1901193J
ER  - 
@conference{
author = "Jovanović, Aleksandra A. and Petrović, Predrag M. and Đorđević, Verica B. and Častvan, Ivona M. and Lević, Steva M. and Zdunić, Gordana M. and Bugarski, Branko M.",
year = "2019",
abstract = "In the present study, spray-dried Thymus serpyllum extracts obtained by using four extraction
techniques (maceration, heat-assisted extraction, extraction in ultrasound bath and extraction by
ultrasound probe) were characterized through determination of total polyphenols and total
flavonoids contents, antioxidant capacity, zeta potential, bulk density and solubility. Polyphenols
yield was statistically higher in the extract obtained by ultrasound probe, in comparison to the
extracts prepared using maceration, heat-assisted extraction and extraction in ultrasound bath.
On the other hand, extraction technique did not show statistically significant influence on the
flavonoids concentration. Furthermore, extraction procedures did not show significant effect on
antioxidant neutralization of DPPH radicals, while flavonoids yield had correlation with the
DPPH radical-scavenging capacity assay. However, the extracts obtained using maceration and
ultrasound waves (ultrasound bath) have shown significantly better antioxidant capacity in the
preservation of β-carotene, compared to the extracts prepared by using high temperature and
ultrasound probe. The extract obtained in maceration has shown statistically better stability
(higher absolute value of zeta potential), compared to the extracts prepared using high
temperature and ultrasound waves. According to the results of Pharmacopoeia test, bulk density
of spray-dried T. serpyllum extracts was ranked by significance in the following order: heatassisted extraction>ultrasound bath and ultrasound probe>maceration. Relatively high
solubility of spray-dried extracts has been found in the following order: maceration>ultrasound
bath and ultrasound probe>heat-assisted extraction. Spray-dried T. serpyllum extract prepared
using maceration represents a powder with satisfying physicochemical properties, as well as a
good source of substances with significant antioxidant activity, particularly in emulsions, which
enable its use in functional food and pharmaceutical products.",
publisher = "Faculty of Technology, Zvornik",
journal = "VI International Congress: „Engineering, Environment and Materials in Processing Industry“",
title = "Spray-dried extracts of Thymus serpyllum",
pages = "200-193",
doi = "10.7251/EEMEN1901193J"
}
Jovanović, A. A., Petrović, P. M., Đorđević, V. B., Častvan, I. M., Lević, S. M., Zdunić, G. M.,& Bugarski, B. M.. (2019). Spray-dried extracts of Thymus serpyllum. in VI International Congress: „Engineering, Environment and Materials in Processing Industry“
Faculty of Technology, Zvornik., 193-200.
https://doi.org/10.7251/EEMEN1901193J
Jovanović AA, Petrović PM, Đorđević VB, Častvan IM, Lević SM, Zdunić GM, Bugarski BM. Spray-dried extracts of Thymus serpyllum. in VI International Congress: „Engineering, Environment and Materials in Processing Industry“. 2019;:193-200.
doi:10.7251/EEMEN1901193J .
Jovanović, Aleksandra A., Petrović, Predrag M., Đorđević, Verica B., Častvan, Ivona M., Lević, Steva M., Zdunić, Gordana M., Bugarski, Branko M., "Spray-dried extracts of Thymus serpyllum" in VI International Congress: „Engineering, Environment and Materials in Processing Industry“ (2019):193-200,
https://doi.org/10.7251/EEMEN1901193J . .

β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles

Jovanović, Aleksandra A.; Balanč, Bojana D.; Ota, Ajda; Đorđević, Verica B.; Šavikin, Katarina P.; Nedović, Viktor A.; Poklar Ulrih, Nataša

(University of East Sarajevo, Faculty of Technology, 2019)

TY  - JOUR
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana D.
AU  - Ota, Ajda
AU  - Đorđević, Verica B.
AU  - Šavikin, Katarina P.
AU  - Nedović, Viktor A.
AU  - Poklar Ulrih, Nataša
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5942
AB  - The aim of the present study was the examination of the impact of β-sitosterol and gentisic acid on the characteristics of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine(DPPC) liposomal particles: (a) bilayer permeability (fluorescence spectroscopy),(b) particle size, polydispersity index (PDI) and zeta potential (photon correlation spectroscopy) and (c) thermal properties (differential scanning calorimetry).β-sitosterol induced the increase of liposomal bilayer rigidity, due to rearranging of the phospholipid chains, while gentisic acid enhanced the membrane fluidity, due to the reduced orderliness and the increase of phospholipid dynamics. The inclusion of β-sitosterol in liposomes caused a significant increase in particle diameter and PDI, while the encapsulation of gentisic acid did not have influence on particle size distribution. Apart from that, the presence ofβ-sitosterol resulted in the significant zeta potential increase, and thus a better stability of liposomal spheres(in the absence and in the presence of gentisic acid). β-sitosterol decreased main transition temperature (Tm) and phase transition enthalpy (∆H), and caused the disappearance of the pre-transition peak as well, whereas the presence of gentisic acid produced a slight decrease in Tm and increase of ∆H. Therefore, gentisic acid had more favourable, stabilizing interactions with phospholipids thanβ-sitosterol. Thus, it can be concluded that β-sitosterol is located in the bilayer interior between phospholipids acyl chains, and gentisic acid is incorporated near the outer leaflet of the phospholipid membrane, next to the polar head groups.β-sitosterol and gentisic acid loaded DPPC liposomal particles have a potential to be used in food and pharmaceutical products, due to the important individual and possible synergistic beneficial health properties ofβ-sitosterol and gentisic acid.
PB  - University of East Sarajevo, Faculty of Technology
T2  - Journal of Engineering & Processing Management
T1  - β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles
EP  - 88
IS  - 2
SP  - 81
VL  - 11
DO  - 10.7251/JEPM1902081A
ER  - 
@article{
author = "Jovanović, Aleksandra A. and Balanč, Bojana D. and Ota, Ajda and Đorđević, Verica B. and Šavikin, Katarina P. and Nedović, Viktor A. and Poklar Ulrih, Nataša",
year = "2019",
abstract = "The aim of the present study was the examination of the impact of β-sitosterol and gentisic acid on the characteristics of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine(DPPC) liposomal particles: (a) bilayer permeability (fluorescence spectroscopy),(b) particle size, polydispersity index (PDI) and zeta potential (photon correlation spectroscopy) and (c) thermal properties (differential scanning calorimetry).β-sitosterol induced the increase of liposomal bilayer rigidity, due to rearranging of the phospholipid chains, while gentisic acid enhanced the membrane fluidity, due to the reduced orderliness and the increase of phospholipid dynamics. The inclusion of β-sitosterol in liposomes caused a significant increase in particle diameter and PDI, while the encapsulation of gentisic acid did not have influence on particle size distribution. Apart from that, the presence ofβ-sitosterol resulted in the significant zeta potential increase, and thus a better stability of liposomal spheres(in the absence and in the presence of gentisic acid). β-sitosterol decreased main transition temperature (Tm) and phase transition enthalpy (∆H), and caused the disappearance of the pre-transition peak as well, whereas the presence of gentisic acid produced a slight decrease in Tm and increase of ∆H. Therefore, gentisic acid had more favourable, stabilizing interactions with phospholipids thanβ-sitosterol. Thus, it can be concluded that β-sitosterol is located in the bilayer interior between phospholipids acyl chains, and gentisic acid is incorporated near the outer leaflet of the phospholipid membrane, next to the polar head groups.β-sitosterol and gentisic acid loaded DPPC liposomal particles have a potential to be used in food and pharmaceutical products, due to the important individual and possible synergistic beneficial health properties ofβ-sitosterol and gentisic acid.",
publisher = "University of East Sarajevo, Faculty of Technology",
journal = "Journal of Engineering & Processing Management",
title = "β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles",
pages = "88-81",
number = "2",
volume = "11",
doi = "10.7251/JEPM1902081A"
}
Jovanović, A. A., Balanč, B. D., Ota, A., Đorđević, V. B., Šavikin, K. P., Nedović, V. A.,& Poklar Ulrih, N.. (2019). β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles. in Journal of Engineering & Processing Management
University of East Sarajevo, Faculty of Technology., 11(2), 81-88.
https://doi.org/10.7251/JEPM1902081A
Jovanović AA, Balanč BD, Ota A, Đorđević VB, Šavikin KP, Nedović VA, Poklar Ulrih N. β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles. in Journal of Engineering & Processing Management. 2019;11(2):81-88.
doi:10.7251/JEPM1902081A .
Jovanović, Aleksandra A., Balanč, Bojana D., Ota, Ajda, Đorđević, Verica B., Šavikin, Katarina P., Nedović, Viktor A., Poklar Ulrih, Nataša, "β‐sitosterol and gentisic acid loaded1,2‐dipalmitoyl‐sn‐glycero‐3‐phosphocholine liposomal particles" in Journal of Engineering & Processing Management, 11, no. 2 (2019):81-88,
https://doi.org/10.7251/JEPM1902081A . .