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 .

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 .

TY  - JOUR
AU  - Jovanović, Aleksandra A.
AU  - Balanč, Bojana
AU  - Volić, Mina
AU  - Pećinar, Ilinka
AU  - Živković, Jelena
AU  - Šavikin, Katarina P.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6629
AB  - In the present study, rosehip (Rosa canina L.) extract was successfully encapsulated in phospholipid liposomes using a single-step procedure named the proliposome method. Part of the obtained liposomes was subjected to UV irradiation and non-treated (native) and UV-irradiated liposomes were further characterized in terms of encapsulation efficiency, chemical composition (HPLC analysis), antioxidant capacity, particle size, PDI, zeta potential, conductivity, mobility, and antioxidant capacity. Raman spectroscopy as well as DSC analysis were applied to evaluate the influence of UV irradiation on the physicochemical properties of liposomes. The encapsulation efficiency of extract-loaded liposomes was higher than 90%; the average size was 251.5 nm; the zeta potential was −22.4 mV; and the conductivity was found to be 0.007 mS/cm. UV irradiation did not cause a change in the mentioned parameters. In addition, irradiation did not affect the antioxidant potential of the liposome–extract system. Raman spectroscopy indicated that the extract was completely covered by the lipid membrane during liposome entrapment, and the peroxidation process was minimized by the presence of rosehip extract in liposomes. These results may guide the potential application of rosehip extract-loaded liposomes in the food, pharmaceutical, or cosmetic industries, particularly when liposomal sterilization is needed.
PB  - Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Plants
T1  - Rosehip Extract-Loaded Liposomes for Potential Skin Application: Physicochemical Properties of Non- and UV-Irradiated Liposomes
IS  - 17
SP  - 3063
VL  - 12
DO  - 10.3390/plants12173063
ER  - 

@article{
author = "Jovanović, Aleksandra A. and Balanč, Bojana and Volić, Mina and Pećinar, Ilinka and Živković, Jelena and Šavikin, Katarina P.",
year = "2023",
abstract = "In the present study, rosehip (Rosa canina L.) extract was successfully encapsulated in phospholipid liposomes using a single-step procedure named the proliposome method. Part of the obtained liposomes was subjected to UV irradiation and non-treated (native) and UV-irradiated liposomes were further characterized in terms of encapsulation efficiency, chemical composition (HPLC analysis), antioxidant capacity, particle size, PDI, zeta potential, conductivity, mobility, and antioxidant capacity. Raman spectroscopy as well as DSC analysis were applied to evaluate the influence of UV irradiation on the physicochemical properties of liposomes. The encapsulation efficiency of extract-loaded liposomes was higher than 90%; the average size was 251.5 nm; the zeta potential was −22.4 mV; and the conductivity was found to be 0.007 mS/cm. UV irradiation did not cause a change in the mentioned parameters. In addition, irradiation did not affect the antioxidant potential of the liposome–extract system. Raman spectroscopy indicated that the extract was completely covered by the lipid membrane during liposome entrapment, and the peroxidation process was minimized by the presence of rosehip extract in liposomes. These results may guide the potential application of rosehip extract-loaded liposomes in the food, pharmaceutical, or cosmetic industries, particularly when liposomal sterilization is needed.",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Plants",
title = "Rosehip Extract-Loaded Liposomes for Potential Skin Application: Physicochemical Properties of Non- and UV-Irradiated Liposomes",
number = "17",
pages = "3063",
volume = "12",
doi = "10.3390/plants12173063"
}

Jovanović, A. A., Balanč, B., Volić, M., Pećinar, I., Živković, J.,& Šavikin, K. P.. (2023). Rosehip Extract-Loaded Liposomes for Potential Skin Application: Physicochemical Properties of Non- and UV-Irradiated Liposomes. in Plants
Multidisciplinary Digital Publishing Institute (MDPI)., 12(17), 3063.
https://doi.org/10.3390/plants12173063

Jovanović AA, Balanč B, Volić M, Pećinar I, Živković J, Šavikin KP. Rosehip Extract-Loaded Liposomes for Potential Skin Application: Physicochemical Properties of Non- and UV-Irradiated Liposomes. in Plants. 2023;12(17):3063.
doi:10.3390/plants12173063 .

Jovanović, Aleksandra A., Balanč, Bojana, Volić, Mina, Pećinar, Ilinka, Živković, Jelena, Šavikin, Katarina P., "Rosehip Extract-Loaded Liposomes for Potential Skin Application: Physicochemical Properties of Non- and UV-Irradiated Liposomes" in Plants, 12, no. 17 (2023):3063,
https://doi.org/10.3390/plants12173063 . .

TY  - CHAP
AU  - Đorđević, Verica
AU  - Balanč, Bojana
AU  - Kalušević, Ana
AU  - Volić, Mina
AU  - Obradović, Nataša
AU  - Petrović, Predrag
AU  - Bugarski, Branko
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6128
AB  - The controlled active molecule-delivery technology has progressed over the last decades, with the development of sustained release systems for application in food sector. It is useful to control the rate and extent of food digestion in different regions of the gastrointestinal tract (GIT) and release of an active compound with the ultimate goal of controlling bioavailability and satiety of blood levels. The nature, molecular weight and concentration of a carrier material, as well as the lipophilic/hydrophilic character of the loaded active component, its concentration, interfacial properties and the particle size distribution are some of the key factors that determine the delivery performance of these systems. pH variation, temperature change, variation of the redox potential and enzyme activity are stimuli which most often induce the release of an active molecule in a medium. In order to develop food additives with controlled release, their processing in the gastrointestinal tract has to be understood; therefore, a general description of the digestive system is given and associated to the currently used in vitro experimental models.

This chapter aims to give a useful overview on the gastrointestinal fate of the most frequently used carrier materials and structures of food-grade delivery systems. At the end, mathematical models most useful in fitting to the experimental data of release profiles and resolving the mechanisms implied in controlled release are summarized.
PB  - CRC Press
T2  - Encapsulation in Food Processing and Fermentation
T1  - Controlled Release Systems for Food Application
EP  - 171
SP  - 142
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6128
ER  - 

@inbook{
author = "Đorđević, Verica and Balanč, Bojana and Kalušević, Ana and Volić, Mina and Obradović, Nataša and Petrović, Predrag and Bugarski, Branko",
year = "2022",
abstract = "The controlled active molecule-delivery technology has progressed over the last decades, with the development of sustained release systems for application in food sector. It is useful to control the rate and extent of food digestion in different regions of the gastrointestinal tract (GIT) and release of an active compound with the ultimate goal of controlling bioavailability and satiety of blood levels. The nature, molecular weight and concentration of a carrier material, as well as the lipophilic/hydrophilic character of the loaded active component, its concentration, interfacial properties and the particle size distribution are some of the key factors that determine the delivery performance of these systems. pH variation, temperature change, variation of the redox potential and enzyme activity are stimuli which most often induce the release of an active molecule in a medium. In order to develop food additives with controlled release, their processing in the gastrointestinal tract has to be understood; therefore, a general description of the digestive system is given and associated to the currently used in vitro experimental models.

This chapter aims to give a useful overview on the gastrointestinal fate of the most frequently used carrier materials and structures of food-grade delivery systems. At the end, mathematical models most useful in fitting to the experimental data of release profiles and resolving the mechanisms implied in controlled release are summarized.",
publisher = "CRC Press",
journal = "Encapsulation in Food Processing and Fermentation",
booktitle = "Controlled Release Systems for Food Application",
pages = "171-142",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6128"
}

Đorđević, V., Balanč, B., Kalušević, A., Volić, M., Obradović, N., Petrović, P.,& Bugarski, B.. (2022). Controlled Release Systems for Food Application. in Encapsulation in Food Processing and Fermentation
CRC Press., 142-171.
https://hdl.handle.net/21.15107/rcub_technorep_6128

Đorđević V, Balanč B, Kalušević A, Volić M, Obradović N, Petrović P, Bugarski B. Controlled Release Systems for Food Application. in Encapsulation in Food Processing and Fermentation. 2022;:142-171.
https://hdl.handle.net/21.15107/rcub_technorep_6128 .

Đorđević, Verica, Balanč, Bojana, Kalušević, Ana, Volić, Mina, Obradović, Nataša, Petrović, Predrag, Bugarski, Branko, "Controlled Release Systems for Food Application" in Encapsulation in Food Processing and Fermentation (2022):142-171,
https://hdl.handle.net/21.15107/rcub_technorep_6128 .

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 .

TY  - JOUR
AU  - Obradović, Nataša
AU  - Volić, Mina
AU  - Nedović, Viktor
AU  - Rakin, Marica
AU  - Bugarski, Branko
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6031
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5035
AB  - The production of functional beverages has gained more attention because of growing consumers' interest in personal health. The process of carrier production and characterization of a novel type of protein-carbohydrate carriers for functional beverages with a focus on cell protection during fermentation, gastrointestinal, and storage conditions are shown in this study. Probiotic starter culture was microencapsulated using spray and freeze-drying techniques and then implemented in whey-based beverages. Encapsulation materials used are whey protein concentrate, whey, and sodium alginate. The encapsulation efficiency results were over 76.8% and 81.4%, after spray and freeze-drying respectively, depending on the carrier formulation. The culture in freeze-dried carriers reached a higher survival rate (>7.5 log10(CFUg−1)) than one's encapsulated by spray-drying technique during storage. Microencapsulation of the culture significantly improved cell viability in gastrointestinal and storage conditions compared with free cells. Usage of both encapsulation techniques showed potential regarding cell preservation in production and storage.
PB  - Elsevier Ltd.
T2  - Journal of Food Engineering
T1  - Microencapsulation of probiotic starter culture in protein–carbohydrate carriers using spray and freeze-drying processes: Implementation in whey-based beverages
SP  - 110948
VL  - 321
DO  - 10.1016/j.jfoodeng.2022.110948
ER  - 

@article{
author = "Obradović, Nataša and Volić, Mina and Nedović, Viktor and Rakin, Marica and Bugarski, Branko",
year = "2022",
abstract = "The production of functional beverages has gained more attention because of growing consumers' interest in personal health. The process of carrier production and characterization of a novel type of protein-carbohydrate carriers for functional beverages with a focus on cell protection during fermentation, gastrointestinal, and storage conditions are shown in this study. Probiotic starter culture was microencapsulated using spray and freeze-drying techniques and then implemented in whey-based beverages. Encapsulation materials used are whey protein concentrate, whey, and sodium alginate. The encapsulation efficiency results were over 76.8% and 81.4%, after spray and freeze-drying respectively, depending on the carrier formulation. The culture in freeze-dried carriers reached a higher survival rate (>7.5 log10(CFUg−1)) than one's encapsulated by spray-drying technique during storage. Microencapsulation of the culture significantly improved cell viability in gastrointestinal and storage conditions compared with free cells. Usage of both encapsulation techniques showed potential regarding cell preservation in production and storage.",
publisher = "Elsevier Ltd.",
journal = "Journal of Food Engineering",
title = "Microencapsulation of probiotic starter culture in protein–carbohydrate carriers using spray and freeze-drying processes: Implementation in whey-based beverages",
pages = "110948",
volume = "321",
doi = "10.1016/j.jfoodeng.2022.110948"
}

Obradović, N., Volić, M., Nedović, V., Rakin, M.,& Bugarski, B.. (2022). Microencapsulation of probiotic starter culture in protein–carbohydrate carriers using spray and freeze-drying processes: Implementation in whey-based beverages. in Journal of Food Engineering
Elsevier Ltd.., 321, 110948.
https://doi.org/10.1016/j.jfoodeng.2022.110948

Obradović N, Volić M, Nedović V, Rakin M, Bugarski B. Microencapsulation of probiotic starter culture in protein–carbohydrate carriers using spray and freeze-drying processes: Implementation in whey-based beverages. in Journal of Food Engineering. 2022;321:110948.
doi:10.1016/j.jfoodeng.2022.110948 .

Obradović, Nataša, Volić, Mina, Nedović, Viktor, Rakin, Marica, Bugarski, Branko, "Microencapsulation of probiotic starter culture in protein–carbohydrate carriers using spray and freeze-drying processes: Implementation in whey-based beverages" in Journal of Food Engineering, 321 (2022):110948,
https://doi.org/10.1016/j.jfoodeng.2022.110948 . .

TY  - JOUR
AU  - Volić, Mina
AU  - Pećinar, Ilinka
AU  - Micić, Darko
AU  - Đorđević, Verica
AU  - Pešić, Radojica
AU  - Nedović, Viktor
AU  - Obradović, Nataša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5067
AB  - Innovative coating powders, based on whey protein concentrate (10–15 wt%) as native (WPC) or denatured protein (D-WPC), solely or in combination with alginate (0.75 wt%, AL), containing thyme essential oil, were produced using the freeze-drying technique. The impact of individual components (protein, alginate and oil) as well as the effect of heat-induced protein denaturation, was resolved regarding physicochemical, thermal and morphological properties of powders. High product yield (∼100%), particle size (223–257 nm), low moisture content (0.10–0.13%) and zeta potential (−19 to −25.6 mV) were determined for all samples. Strong antimicrobial activity of thyme oil nanocarriers against foodborne pathogens was demonstrated. Thermogravimetric analysis (TGA) indicated enhanced thermal stability of encapsulated oil. The most specific bands of structural compounds were identified in Raman spectra of the tested formulations, but principal component analysis (PCA) on recorded spectra was necessary to show the differences between carriers of different wall materials.
PB  - Elsevier
T2  - Food Chemistry
T1  - Design and characterization of whey protein nanocarriers for thyme essential oil encapsulation obtained by freeze-drying
SP  - 132749
VL  - 386
DO  - 10.1016/j.foodchem.2022.132749
ER  - 

@article{
author = "Volić, Mina and Pećinar, Ilinka and Micić, Darko and Đorđević, Verica and Pešić, Radojica and Nedović, Viktor and Obradović, Nataša",
year = "2022",
abstract = "Innovative coating powders, based on whey protein concentrate (10–15 wt%) as native (WPC) or denatured protein (D-WPC), solely or in combination with alginate (0.75 wt%, AL), containing thyme essential oil, were produced using the freeze-drying technique. The impact of individual components (protein, alginate and oil) as well as the effect of heat-induced protein denaturation, was resolved regarding physicochemical, thermal and morphological properties of powders. High product yield (∼100%), particle size (223–257 nm), low moisture content (0.10–0.13%) and zeta potential (−19 to −25.6 mV) were determined for all samples. Strong antimicrobial activity of thyme oil nanocarriers against foodborne pathogens was demonstrated. Thermogravimetric analysis (TGA) indicated enhanced thermal stability of encapsulated oil. The most specific bands of structural compounds were identified in Raman spectra of the tested formulations, but principal component analysis (PCA) on recorded spectra was necessary to show the differences between carriers of different wall materials.",
publisher = "Elsevier",
journal = "Food Chemistry",
title = "Design and characterization of whey protein nanocarriers for thyme essential oil encapsulation obtained by freeze-drying",
pages = "132749",
volume = "386",
doi = "10.1016/j.foodchem.2022.132749"
}

Volić, M., Pećinar, I., Micić, D., Đorđević, V., Pešić, R., Nedović, V.,& Obradović, N.. (2022). Design and characterization of whey protein nanocarriers for thyme essential oil encapsulation obtained by freeze-drying. in Food Chemistry
Elsevier., 386, 132749.
https://doi.org/10.1016/j.foodchem.2022.132749

Volić M, Pećinar I, Micić D, Đorđević V, Pešić R, Nedović V, Obradović N. Design and characterization of whey protein nanocarriers for thyme essential oil encapsulation obtained by freeze-drying. in Food Chemistry. 2022;386:132749.
doi:10.1016/j.foodchem.2022.132749 .

Volić, Mina, Pećinar, Ilinka, Micić, Darko, Đorđević, Verica, Pešić, Radojica, Nedović, Viktor, Obradović, Nataša, "Design and characterization of whey protein nanocarriers for thyme essential oil encapsulation obtained by freeze-drying" in Food Chemistry, 386 (2022):132749,
https://doi.org/10.1016/j.foodchem.2022.132749 . .

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 .

TY  - JOUR
AU  - Volić, Mina M.
AU  - Đorđević, Verica B.
AU  - Vukašinović-Sekulić, Maja
AU  - Obradović, Nataša S.
AU  - Knežević-Jugović, Zorica D.
AU  - Bugarski, Branko M.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5916
AB  - The aim of this study was to develop a stable hydrogel carrier system for thyme essential oil (TEO) that could protect its sensitive polyphenol compounds. The impact of wall material (soy protein and alginate) on encapsulation efficiency and thymol release in simulated gastrointestinal conditions, was investigated. The release of thymol was ~ 80 % and 20 % in simulated gastric and pancreatic solutions, respectively. Thyme essential oil plays an important role as an antimicrobial and antioxidant agent. Results indicated that encapsulated TEO inside the hydrogel matrix exhibited antioxidant activity demonstrated by CUPRAC and ABTS analysis, even after thermal treatment of the beads, indicating the metal chelate effect as dominant. In vitro antimicrobial activity of encapsulated TEO has been studied against several pathogenic microorganisms such as Escherichia coli, Staphylococcus aureus, Bacillus cereus and Candida albicans. Beads coded as Ca-A1.5/SP1.5 showed anti-Candida albicans activity, while modified bead formulations Ca-A1.5/SP1.5* and Ca-A1.5/SP0.25** showed bactericidal activity against Escherichia coli and Staphylococcus aureus.
PB  - University of Novi Sad, Faculty of Technology
T2  - Acta Periodica Technologica
T1  - ANTIOXIDANT and ANTIMICROBIAL CAPACITY of ENCAPSULATED THYME ESSENTIAL OIL in ALGINATE and SOY PROTEIN-BASED CARRIERS
EP  - 12
IS  - 52
SP  - 1
DO  - 10.2298/APT2152001V
ER  - 

@article{
author = "Volić, Mina M. and Đorđević, Verica B. and Vukašinović-Sekulić, Maja and Obradović, Nataša S. and Knežević-Jugović, Zorica D. and Bugarski, Branko M.",
year = "2021",
abstract = "The aim of this study was to develop a stable hydrogel carrier system for thyme essential oil (TEO) that could protect its sensitive polyphenol compounds. The impact of wall material (soy protein and alginate) on encapsulation efficiency and thymol release in simulated gastrointestinal conditions, was investigated. The release of thymol was ~ 80 % and 20 % in simulated gastric and pancreatic solutions, respectively. Thyme essential oil plays an important role as an antimicrobial and antioxidant agent. Results indicated that encapsulated TEO inside the hydrogel matrix exhibited antioxidant activity demonstrated by CUPRAC and ABTS analysis, even after thermal treatment of the beads, indicating the metal chelate effect as dominant. In vitro antimicrobial activity of encapsulated TEO has been studied against several pathogenic microorganisms such as Escherichia coli, Staphylococcus aureus, Bacillus cereus and Candida albicans. Beads coded as Ca-A1.5/SP1.5 showed anti-Candida albicans activity, while modified bead formulations Ca-A1.5/SP1.5* and Ca-A1.5/SP0.25** showed bactericidal activity against Escherichia coli and Staphylococcus aureus.",
publisher = "University of Novi Sad, Faculty of Technology",
journal = "Acta Periodica Technologica",
title = "ANTIOXIDANT and ANTIMICROBIAL CAPACITY of ENCAPSULATED THYME ESSENTIAL OIL in ALGINATE and SOY PROTEIN-BASED CARRIERS",
pages = "12-1",
number = "52",
doi = "10.2298/APT2152001V"
}

Volić, M. M., Đorđević, V. B., Vukašinović-Sekulić, M., Obradović, N. S., Knežević-Jugović, Z. D.,& Bugarski, B. M.. (2021). ANTIOXIDANT and ANTIMICROBIAL CAPACITY of ENCAPSULATED THYME ESSENTIAL OIL in ALGINATE and SOY PROTEIN-BASED CARRIERS. in Acta Periodica Technologica
University of Novi Sad, Faculty of Technology.(52), 1-12.
https://doi.org/10.2298/APT2152001V

Volić MM, Đorđević VB, Vukašinović-Sekulić M, Obradović NS, Knežević-Jugović ZD, Bugarski BM. ANTIOXIDANT and ANTIMICROBIAL CAPACITY of ENCAPSULATED THYME ESSENTIAL OIL in ALGINATE and SOY PROTEIN-BASED CARRIERS. in Acta Periodica Technologica. 2021;(52):1-12.
doi:10.2298/APT2152001V .

Volić, Mina M., Đorđević, Verica B., Vukašinović-Sekulić, Maja, Obradović, Nataša S., Knežević-Jugović, Zorica D., Bugarski, Branko M., "ANTIOXIDANT and ANTIMICROBIAL CAPACITY of ENCAPSULATED THYME ESSENTIAL OIL in ALGINATE and SOY PROTEIN-BASED CARRIERS" in Acta Periodica Technologica, no. 52 (2021):1-12,
https://doi.org/10.2298/APT2152001V . .

TY  - JOUR
AU  - Volić, Mina
AU  - Obradović, Nataša
AU  - Đorđević, Verica
AU  - Luković, Nevena
AU  - Knežević-Jugović, Zorica
AU  - Bugarski, Branko
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4367
AB  - This work aims to characterize a novel system for thyme essential oil delivery based on the combination of natural emulsifiers (soy protein and soy lecithin) and alginate, produced using the extrusion technique. The formulations are optimized concerning alginate and soy protein concentrations (both 1 to 1.5 wt.%), and consequently lecithin amount, in order to achieve spherical beads in the range 2.0 to 2.3 mm and 1.2 to 1.4 mm, wet and dry, respectively. Fourier-transform infrared analysis was performed, proving that there are interactions between all components. Lecithin-soy protein synergistic combination improved entrapment efficiency of total polyphenols (for nearly 12%) and decreased thymol release in a simulated gastric solution for nearly 35%, in comparison with beads without lecithin. The addition of lecithin enhances the thermal properties of the polysaccharide-protein systems at 50 degrees C after 3 hr of heating. The mechanical stability of the biopolymer carriers is improved with lecithin addition and the elastic modulus varied from 80.06 to 123.7 kPa, depending on the formulation. Alginate/soy protein/lecithin are effective carriers for the encapsulation, protection, and controlled release of thyme essential oil. Practical Application There is unfortunately growing human resistance to antibiotics. This work offers a novel system for effective protection and controlled release of thyme essential oil in the small intestine. The mechanical and thermal properties of the carrier were estimated as they indicate how the beads will be able to resist stress during their incorporation into food (i.e. cookies-mixing, baking). The proposed approach offers ''green advantage'' as arises from all-natural materials.
PB  - Wiley, Hoboken
T2  - Journal of Food Science
T1  - Design of biopolymer carriers enriched with natural emulsifiers for improved controlled release of thyme essential oil
EP  - 3842
IS  - 11
SP  - 3833
VL  - 85
DO  - 10.1111/1750-3841.15499
ER  - 

@article{
author = "Volić, Mina and Obradović, Nataša and Đorđević, Verica and Luković, Nevena and Knežević-Jugović, Zorica and Bugarski, Branko",
year = "2020",
abstract = "This work aims to characterize a novel system for thyme essential oil delivery based on the combination of natural emulsifiers (soy protein and soy lecithin) and alginate, produced using the extrusion technique. The formulations are optimized concerning alginate and soy protein concentrations (both 1 to 1.5 wt.%), and consequently lecithin amount, in order to achieve spherical beads in the range 2.0 to 2.3 mm and 1.2 to 1.4 mm, wet and dry, respectively. Fourier-transform infrared analysis was performed, proving that there are interactions between all components. Lecithin-soy protein synergistic combination improved entrapment efficiency of total polyphenols (for nearly 12%) and decreased thymol release in a simulated gastric solution for nearly 35%, in comparison with beads without lecithin. The addition of lecithin enhances the thermal properties of the polysaccharide-protein systems at 50 degrees C after 3 hr of heating. The mechanical stability of the biopolymer carriers is improved with lecithin addition and the elastic modulus varied from 80.06 to 123.7 kPa, depending on the formulation. Alginate/soy protein/lecithin are effective carriers for the encapsulation, protection, and controlled release of thyme essential oil. Practical Application There is unfortunately growing human resistance to antibiotics. This work offers a novel system for effective protection and controlled release of thyme essential oil in the small intestine. The mechanical and thermal properties of the carrier were estimated as they indicate how the beads will be able to resist stress during their incorporation into food (i.e. cookies-mixing, baking). The proposed approach offers ''green advantage'' as arises from all-natural materials.",
publisher = "Wiley, Hoboken",
journal = "Journal of Food Science",
title = "Design of biopolymer carriers enriched with natural emulsifiers for improved controlled release of thyme essential oil",
pages = "3842-3833",
number = "11",
volume = "85",
doi = "10.1111/1750-3841.15499"
}

Volić, M., Obradović, N., Đorđević, V., Luković, N., Knežević-Jugović, Z.,& Bugarski, B.. (2020). Design of biopolymer carriers enriched with natural emulsifiers for improved controlled release of thyme essential oil. in Journal of Food Science
Wiley, Hoboken., 85(11), 3833-3842.
https://doi.org/10.1111/1750-3841.15499

Volić M, Obradović N, Đorđević V, Luković N, Knežević-Jugović Z, Bugarski B. Design of biopolymer carriers enriched with natural emulsifiers for improved controlled release of thyme essential oil. in Journal of Food Science. 2020;85(11):3833-3842.
doi:10.1111/1750-3841.15499 .

Volić, Mina, Obradović, Nataša, Đorđević, Verica, Luković, Nevena, Knežević-Jugović, Zorica, Bugarski, Branko, "Design of biopolymer carriers enriched with natural emulsifiers for improved controlled release of thyme essential oil" in Journal of Food Science, 85, no. 11 (2020):3833-3842,
https://doi.org/10.1111/1750-3841.15499 . .

TY  - JOUR
AU  - Volić, Mina
AU  - Pajić-Lijaković, Ivana
AU  - Đorđević, Verica
AU  - Knežević-Jugović, Zorica
AU  - Pecinar, Ilinka
AU  - Stevanović-Dajić, Zora
AU  - Veljović, Đorđe
AU  - Hadnadjev, Miroslav
AU  - Bugarski, Branko
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3851
AB  - Preparation of alginate-soy protein isolate (AL/SPI) complex beads containing essential oil of thyme was carried out by emulsification of thyme oil in aqueous sodium alginate solution blended with SPI solution, followed by atomization via electrostatic extrusion and gelification with calcium ions. The process parameters were optimized by variation of the alginate (1-2.5 wt.%) and SPI (0-1.5 wt.%) concentrations. Dry alginate-SPI particles exhibited wrinkle surface while shape distortion of hydrogel beads occurred with  gt = 1.5 wt.% alginate concentration, whereas SPI induced reduction of the particle size. Encapsulation efficiency of 72-80 % based on total polyphenols was achieved. In SGF the samples exhibited oil release of 42-55 % (due to matrix shrinkage and proteins degradation by pepsin activity), while the rest was delivered in SIF within 2.5 h simultaneously with swelling and degradation of the matrix.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Alginate/soy protein system for essential oil encapsulation with intestinal delivery
EP  - 24
SP  - 15
VL  - 200
DO  - 10.1016/j.carbpol.2018.07.033
ER  - 

@article{
author = "Volić, Mina and Pajić-Lijaković, Ivana and Đorđević, Verica and Knežević-Jugović, Zorica and Pecinar, Ilinka and Stevanović-Dajić, Zora and Veljović, Đorđe and Hadnadjev, Miroslav and Bugarski, Branko",
year = "2018",
abstract = "Preparation of alginate-soy protein isolate (AL/SPI) complex beads containing essential oil of thyme was carried out by emulsification of thyme oil in aqueous sodium alginate solution blended with SPI solution, followed by atomization via electrostatic extrusion and gelification with calcium ions. The process parameters were optimized by variation of the alginate (1-2.5 wt.%) and SPI (0-1.5 wt.%) concentrations. Dry alginate-SPI particles exhibited wrinkle surface while shape distortion of hydrogel beads occurred with  gt = 1.5 wt.% alginate concentration, whereas SPI induced reduction of the particle size. Encapsulation efficiency of 72-80 % based on total polyphenols was achieved. In SGF the samples exhibited oil release of 42-55 % (due to matrix shrinkage and proteins degradation by pepsin activity), while the rest was delivered in SIF within 2.5 h simultaneously with swelling and degradation of the matrix.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Alginate/soy protein system for essential oil encapsulation with intestinal delivery",
pages = "24-15",
volume = "200",
doi = "10.1016/j.carbpol.2018.07.033"
}

Volić, M., Pajić-Lijaković, I., Đorđević, V., Knežević-Jugović, Z., Pecinar, I., Stevanović-Dajić, Z., Veljović, Đ., Hadnadjev, M.,& Bugarski, B.. (2018). Alginate/soy protein system for essential oil encapsulation with intestinal delivery. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 200, 15-24.
https://doi.org/10.1016/j.carbpol.2018.07.033

Volić M, Pajić-Lijaković I, Đorđević V, Knežević-Jugović Z, Pecinar I, Stevanović-Dajić Z, Veljović Đ, Hadnadjev M, Bugarski B. Alginate/soy protein system for essential oil encapsulation with intestinal delivery. in Carbohydrate Polymers. 2018;200:15-24.
doi:10.1016/j.carbpol.2018.07.033 .

Volić, Mina, Pajić-Lijaković, Ivana, Đorđević, Verica, Knežević-Jugović, Zorica, Pecinar, Ilinka, Stevanović-Dajić, Zora, Veljović, Đorđe, Hadnadjev, Miroslav, Bugarski, Branko, "Alginate/soy protein system for essential oil encapsulation with intestinal delivery" in Carbohydrate Polymers, 200 (2018):15-24,
https://doi.org/10.1016/j.carbpol.2018.07.033 . .