TY  - JOUR
AU  - Radulović, Jelena
AU  - Lučić, Milica
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6530
AB  - Pesticides are extensively used in the cultivation and postharvest protection of citrus fruits, therefore continuous monitoring and health risk assessments of their residues are required. This study aimed to investigate the occurrence of pesticide residues on citrus fruits and to evaluate the acute and chronic risk for adults and children. The risk ranking of twenty-three detected pesticides was carried out according to a matrix ranking scheme. Multiple residues were detected in 83% of 76 analyzed samples. In addition, 28% contained pesticides at or above maximum residue levels (MRLs). The most frequently detected pesticides were imazalil, azoxystrobin, and dimethomorph. According to the risk ranking method, imazalil was classified in the high-risk group, followed by prochloraz, chlorpyrifos, azinphos-methyl, tebufenpyrad, and fenpiroximate, which were considered to pose a medium risk. The majority of detected pesticides (74%) posed a low risk. The health risk assessment indicated that imazalil and thiabendazole contribute to acute (HQa) and chronic (HQc) dietary risk, respectively. The HQc was negligible for the general population, while the HQa of imazalil and thiabendazole exceeded the acceptable level in the worst-case scenario. Cumulative chronic/acute risk (HIc/HIa) assessment showed that chronic risk was acceptable in all samples for children and adults, while the acute risk was unacceptable in 5.3% of citrus fruits for adults and 26% of citrus fruits for children. Sensitivity analyses indicated that the ingestion rate and individual body weight were the most influential risk factors.
PB  - MDPI
T2  - Foods
T1  - Multivariate Assessment and Risk Ranking of Pesticide Residues in Citrus Fruits
IS  - 13
SP  - 2454
VL  - 12
DO  - 10.3390/foods12132454
ER  - 

@article{
author = "Radulović, Jelena and Lučić, Milica and Nešić, Aleksandra and Onjia, Antonije",
year = "2023",
abstract = "Pesticides are extensively used in the cultivation and postharvest protection of citrus fruits, therefore continuous monitoring and health risk assessments of their residues are required. This study aimed to investigate the occurrence of pesticide residues on citrus fruits and to evaluate the acute and chronic risk for adults and children. The risk ranking of twenty-three detected pesticides was carried out according to a matrix ranking scheme. Multiple residues were detected in 83% of 76 analyzed samples. In addition, 28% contained pesticides at or above maximum residue levels (MRLs). The most frequently detected pesticides were imazalil, azoxystrobin, and dimethomorph. According to the risk ranking method, imazalil was classified in the high-risk group, followed by prochloraz, chlorpyrifos, azinphos-methyl, tebufenpyrad, and fenpiroximate, which were considered to pose a medium risk. The majority of detected pesticides (74%) posed a low risk. The health risk assessment indicated that imazalil and thiabendazole contribute to acute (HQa) and chronic (HQc) dietary risk, respectively. The HQc was negligible for the general population, while the HQa of imazalil and thiabendazole exceeded the acceptable level in the worst-case scenario. Cumulative chronic/acute risk (HIc/HIa) assessment showed that chronic risk was acceptable in all samples for children and adults, while the acute risk was unacceptable in 5.3% of citrus fruits for adults and 26% of citrus fruits for children. Sensitivity analyses indicated that the ingestion rate and individual body weight were the most influential risk factors.",
publisher = "MDPI",
journal = "Foods",
title = "Multivariate Assessment and Risk Ranking of Pesticide Residues in Citrus Fruits",
number = "13",
pages = "2454",
volume = "12",
doi = "10.3390/foods12132454"
}

Radulović, J., Lučić, M., Nešić, A.,& Onjia, A.. (2023). Multivariate Assessment and Risk Ranking of Pesticide Residues in Citrus Fruits. in Foods
MDPI., 12(13), 2454.
https://doi.org/10.3390/foods12132454

Radulović J, Lučić M, Nešić A, Onjia A. Multivariate Assessment and Risk Ranking of Pesticide Residues in Citrus Fruits. in Foods. 2023;12(13):2454.
doi:10.3390/foods12132454 .

Radulović, Jelena, Lučić, Milica, Nešić, Aleksandra, Onjia, Antonije, "Multivariate Assessment and Risk Ranking of Pesticide Residues in Citrus Fruits" in Foods, 12, no. 13 (2023):2454,
https://doi.org/10.3390/foods12132454 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Onjia, Antonije
AU  - Dimitrijević, Suzana
AU  - Santagata, Gabriella
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6613
AB  - In this study, pectin-based films blended with alginate and crosslinked with copper ions for potential application in agriculture were investigated. Copper was selected as crosslinking agent, due to its key role as a plant micronutrient, antifungal ability, and focal activity in the pectin crosslinking process. FTIR analysis confirmed the interactions between pectin, alginate and copper salt. The inclusion of alginate in film improved the binding activity of copper ions, providing denser 3d network with enhanced physical-chemical properties. The crosslinked film containing 60 wt% of pectin and 40 wt% of alginate had the highest tensile strength (59.8 MPa), highest UV barrier (transmission of light=0%), and the lowest swelling degree (121%) and water vapor permeability (0.320 ng/ m s Pa). Moreover, the release of copper ions from this formulation after 28 days of immersion in water and soil was 9 and 13 ppm, respectively. The biodegradation rate after 28 days of exposure in the soil was 54%. Nevertheless, all crosslinked pectin-alginate films inhibited the growth of the Fusarium and Aspergillus phytopathogens and demonstrated non-phytotoxicity on germination and growth of wheat. Hence, the system developed in this work can potentially be used as novel, bio-active, tunable plant protective biodegradable foliar spray in agriculture sector.
PB  - Elsevier B.V.
T2  - Industrial Crops and Products
T1  - Characterization of antifungal citrus pectin-based films for potential agricultural application
SP  - 117386
VL  - 204
DO  - 10.1016/j.indcrop.2023.117386
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Davidović, Slađana and Miljković, Miona and Onjia, Antonije and Dimitrijević, Suzana and Santagata, Gabriella",
year = "2023",
abstract = "In this study, pectin-based films blended with alginate and crosslinked with copper ions for potential application in agriculture were investigated. Copper was selected as crosslinking agent, due to its key role as a plant micronutrient, antifungal ability, and focal activity in the pectin crosslinking process. FTIR analysis confirmed the interactions between pectin, alginate and copper salt. The inclusion of alginate in film improved the binding activity of copper ions, providing denser 3d network with enhanced physical-chemical properties. The crosslinked film containing 60 wt% of pectin and 40 wt% of alginate had the highest tensile strength (59.8 MPa), highest UV barrier (transmission of light=0%), and the lowest swelling degree (121%) and water vapor permeability (0.320 ng/ m s Pa). Moreover, the release of copper ions from this formulation after 28 days of immersion in water and soil was 9 and 13 ppm, respectively. The biodegradation rate after 28 days of exposure in the soil was 54%. Nevertheless, all crosslinked pectin-alginate films inhibited the growth of the Fusarium and Aspergillus phytopathogens and demonstrated non-phytotoxicity on germination and growth of wheat. Hence, the system developed in this work can potentially be used as novel, bio-active, tunable plant protective biodegradable foliar spray in agriculture sector.",
publisher = "Elsevier B.V.",
journal = "Industrial Crops and Products",
title = "Characterization of antifungal citrus pectin-based films for potential agricultural application",
pages = "117386",
volume = "204",
doi = "10.1016/j.indcrop.2023.117386"
}

Nešić, A., Meseldžija, S., Davidović, S., Miljković, M., Onjia, A., Dimitrijević, S.,& Santagata, G.. (2023). Characterization of antifungal citrus pectin-based films for potential agricultural application. in Industrial Crops and Products
Elsevier B.V.., 204, 117386.
https://doi.org/10.1016/j.indcrop.2023.117386

Nešić A, Meseldžija S, Davidović S, Miljković M, Onjia A, Dimitrijević S, Santagata G. Characterization of antifungal citrus pectin-based films for potential agricultural application. in Industrial Crops and Products. 2023;204:117386.
doi:10.1016/j.indcrop.2023.117386 .

Nešić, Aleksandra, Meseldžija, Slađana, Davidović, Slađana, Miljković, Miona, Onjia, Antonije, Dimitrijević, Suzana, Santagata, Gabriella, "Characterization of antifungal citrus pectin-based films for potential agricultural application" in Industrial Crops and Products, 204 (2023):117386,
https://doi.org/10.1016/j.indcrop.2023.117386 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Onjia, Antonije
AU  - Cabrera-Barjas, Gustavo
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5280
AB  - In this research, the pectin monoliths were prepared via the sol-gel process through different routes of crosslinking and additional freeze-drying. The crosslinking reaction was induced by the use of calcium ions in aqueous solutions and in alcohol/water solutions. The resulting pectin monoliths obtained by freeze-drying were macroporous with open cells, limited specific surface area, moderate mechanical stability and moderate biodegradation rate. The presence of alcohol in crosslinking solution significantly changed the morphology of final pectin monoliths, which was evidenced by the reduction of their pore size for one order. The specific surface area of pectin monoliths obtained through the calcium-water-alcohol route was 25.7 m2/g, the Young compressive modulus was 0.52 MPa, and the biodegradation rate was 45% after 30 days of immersion in compost media. Considering that pectin can be obtained from food waste, and its physical properties could be tailored by different crosslinking routes, the pectin monoliths could find wide application in the pharmaceutical, agricultural, medical and food industries, providing sustainable development concepts.
PB  - MDPI
T2  - Polymers
T1  - Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels
IS  - 23
SP  - 5252
VL  - 14
DO  - 10.3390/polym14235252
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Onjia, Antonije and Cabrera-Barjas, Gustavo",
year = "2022",
abstract = "In this research, the pectin monoliths were prepared via the sol-gel process through different routes of crosslinking and additional freeze-drying. The crosslinking reaction was induced by the use of calcium ions in aqueous solutions and in alcohol/water solutions. The resulting pectin monoliths obtained by freeze-drying were macroporous with open cells, limited specific surface area, moderate mechanical stability and moderate biodegradation rate. The presence of alcohol in crosslinking solution significantly changed the morphology of final pectin monoliths, which was evidenced by the reduction of their pore size for one order. The specific surface area of pectin monoliths obtained through the calcium-water-alcohol route was 25.7 m2/g, the Young compressive modulus was 0.52 MPa, and the biodegradation rate was 45% after 30 days of immersion in compost media. Considering that pectin can be obtained from food waste, and its physical properties could be tailored by different crosslinking routes, the pectin monoliths could find wide application in the pharmaceutical, agricultural, medical and food industries, providing sustainable development concepts.",
publisher = "MDPI",
journal = "Polymers",
title = "Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels",
number = "23",
pages = "5252",
volume = "14",
doi = "10.3390/polym14235252"
}

Nešić, A., Meseldžija, S., Onjia, A.,& Cabrera-Barjas, G.. (2022). Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels. in Polymers
MDPI., 14(23), 5252.
https://doi.org/10.3390/polym14235252

Nešić A, Meseldžija S, Onjia A, Cabrera-Barjas G. Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels. in Polymers. 2022;14(23):5252.
doi:10.3390/polym14235252 .

Nešić, Aleksandra, Meseldžija, Slađana, Onjia, Antonije, Cabrera-Barjas, Gustavo, "Impact of Crosslinking on the Characteristics of Pectin Monolith Cryogels" in Polymers, 14, no. 23 (2022):5252,
https://doi.org/10.3390/polym14235252 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Meseldžija, Slađana
AU  - Cabrera-Barjas, Gustavo
AU  - Onjia, Antonije
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5340
AB  - Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
T2  - Foods
T1  - Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications
IS  - 3
SP  - 360
VL  - 11
DO  - 10.3390/foods11030360
ER  - 

@article{
author = "Nešić, Aleksandra and Meseldžija, Slađana and Cabrera-Barjas, Gustavo and Onjia, Antonije",
year = "2022",
abstract = "Pectin is a natural biopolymer with broad applications in the food industry and it is suitable to prepare edible films to prolong food shelf-life. However, the main limitation of pectin-based films is their poor mechanical and barrier properties. Zeolite Y is a hydrophobic clay that can be used as film reinforcement material to improve its physicochemical and mechanical properties. In this work, the influence of high methoxyl citrus and apple pectin on physicochemical properties of biopolymer films modified with zeolite Y (0.05–0.2 wt%) was investigated. The films were characterized by FTIR, TGA, WAXD, mechanical analysis, and water vapor permeability analysis, and a potential film application is presented. The WAXD and FTIR analysis demonstrated that the strongest interaction between pectin chains and zeolite Y occurred when citrus high methylated pectin was used. Adding 0.2 wt% of zeolite Y into citrus high methylated pectin matrix enhanced the tensile strength by 66%, thermal stability by 13%, and water vapor barrier by 54%. In addition, fruit shelf-life test was performed, where strawberries were sealed in film. It was shown that sealed strawberries maintained a better color and healthy appearance than the control treatment after 7 days at 10◦ C. This study enabled the development of biocomposite films with improved properties for potential application in food packaging. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.",
journal = "Foods",
title = "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications",
number = "3",
pages = "360",
volume = "11",
doi = "10.3390/foods11030360"
}

Nešić, A., Meseldžija, S., Cabrera-Barjas, G.,& Onjia, A.. (2022). Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods, 11(3), 360.
https://doi.org/10.3390/foods11030360

Nešić A, Meseldžija S, Cabrera-Barjas G, Onjia A. Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications. in Foods. 2022;11(3):360.
doi:10.3390/foods11030360 .

Nešić, Aleksandra, Meseldžija, Slađana, Cabrera-Barjas, Gustavo, Onjia, Antonije, "Novel Biocomposite Films Based on High Methoxyl Pectin Reinforced with Zeolite Y for Food Packaging Applications" in Foods, 11, no. 3 (2022):360,
https://doi.org/10.3390/foods11030360 . .

TY  - JOUR
AU  - Meseldžija, Slađana
AU  - Petrović, Jelena
AU  - Onjia, Antonije
AU  - Volkov-Husović, Tatjana
AU  - Nešić, Aleksandra
AU  - Vukelić, Nikola
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4440
AB  - This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste
EP  - 1382
IS  - 10
SP  - 1371
VL  - 85
DO  - 10.2298/JSC200413030M
ER  - 

@article{
author = "Meseldžija, Slađana and Petrović, Jelena and Onjia, Antonije and Volkov-Husović, Tatjana and Nešić, Aleksandra and Vukelić, Nikola",
year = "2020",
abstract = "This study is aimed to evaluate the possibility of lemon peel, as an agro-industrial waste, to remove Fe2+, Zn2+ and Mn2+ from single aqueous solutions and mining wastewater. For this purpose, the influence of various parameters: sorption time, initial pH solution, initial metal ion concentration and a dose of sorbent on the sorption process were studied in batch experiments. The experimental equilibrium data have been analysed utilizing linearized forms of Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms. The Langmuir isotherm provided the best theoretical correlation of the experimental equilibrium data for Fe2+, Zn2+ and Mn2+, with the maximum sorption capacities of 4.40, 5.03 and 4.52 mg g(-1), respectively. The percentage of targeted ions removal from single aqueous solutions was 92.9 % (Zn2+), 84.5 % (Fe2+) and 78.2 % (Mn2+). Regarding the sorption capability of lemon peel in mining wastewater, the maximum removal of Fe2+, Zn2+ and Mn2+ from mining wastewater was 49.62, 33.97 and 9.11 %, respectively. In addition, the potential reusability of the lemon peel as sorbent was investigated through desorption study in 0.1M of CH3COO4, HCl and HNO3 solution. The highest rate of desorption was achieved in 0.1 M HCl solution, reached a value of 55.19 % for Mn2+ and 37.24 % for Zn2+, while for Fe2+ the highest value of 25.82 % was achieved in 0.1M HNO3 solution.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste",
pages = "1382-1371",
number = "10",
volume = "85",
doi = "10.2298/JSC200413030M"
}

Meseldžija, S., Petrović, J., Onjia, A., Volkov-Husović, T., Nešić, A.,& Vukelić, N.. (2020). Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 85(10), 1371-1382.
https://doi.org/10.2298/JSC200413030M

Meseldžija S, Petrović J, Onjia A, Volkov-Husović T, Nešić A, Vukelić N. Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste. in Journal of the Serbian Chemical Society. 2020;85(10):1371-1382.
doi:10.2298/JSC200413030M .

Meseldžija, Slađana, Petrović, Jelena, Onjia, Antonije, Volkov-Husović, Tatjana, Nešić, Aleksandra, Vukelić, Nikola, "Removal of Fe2+, Zn2+ and Mn2+ from the mining wastewater by lemon peel waste" in Journal of the Serbian Chemical Society, 85, no. 10 (2020):1371-1382,
https://doi.org/10.2298/JSC200413030M . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Cabrera-Barjas, Gustavo
AU  - Dimitrijević-Branković, Suzana
AU  - Davidović, Slađana
AU  - Radovanović, Neda
AU  - Delattre, Cédric
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4479
AB  - The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.
PB  - MDPI, Basel
T2  - Molecules
T1  - Prospect of Polysaccharide-Based Materials as Advanced Food Packaging
IS  - 1
VL  - 25
DO  - 10.3390/molecules25010135
ER  - 

@article{
author = "Nešić, Aleksandra and Cabrera-Barjas, Gustavo and Dimitrijević-Branković, Suzana and Davidović, Slađana and Radovanović, Neda and Delattre, Cédric",
year = "2020",
abstract = "The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.",
publisher = "MDPI, Basel",
journal = "Molecules",
title = "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging",
number = "1",
volume = "25",
doi = "10.3390/molecules25010135"
}

Nešić, A., Cabrera-Barjas, G., Dimitrijević-Branković, S., Davidović, S., Radovanović, N.,& Delattre, C.. (2020). Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules
MDPI, Basel., 25(1).
https://doi.org/10.3390/molecules25010135

Nešić A, Cabrera-Barjas G, Dimitrijević-Branković S, Davidović S, Radovanović N, Delattre C. Prospect of Polysaccharide-Based Materials as Advanced Food Packaging. in Molecules. 2020;25(1).
doi:10.3390/molecules25010135 .

Nešić, Aleksandra, Cabrera-Barjas, Gustavo, Dimitrijević-Branković, Suzana, Davidović, Slađana, Radovanović, Neda, Delattre, Cédric, "Prospect of Polysaccharide-Based Materials as Advanced Food Packaging" in Molecules, 25, no. 1 (2020),
https://doi.org/10.3390/molecules25010135 . .

TY  - JOUR
AU  - Radovanović, Neda
AU  - Malagurski, Ivana
AU  - Lević, Steva
AU  - Gordić, Milan V.
AU  - Petrović, Jelena
AU  - Pavlović, Vladimir B.
AU  - Mitrić, Miodrag
AU  - Nešić, Aleksandra
AU  - Dimitrijević-Branković, Suzana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4054
AB  - New agar-based composite films with increasing Cu-carbonate and Cu-phosphate mineral phase content were prepared by in situ mineralization and solvent casting method. SEM and optical analysis revealed that Cu-carbonate phase had better compatibility with agar matrix than Cu-phosphate phase. Incorporation of both mineral phases improved mechanical and water vapor barrier properties of the obtained mineralized films, in concentration dependent manner. When 5 mM of carbonate precursor was incorporated into agar matrix, mechanical resistance was enchanced for 44% and water vapor barrier property for 40%. The release of Cu (II) was higher in acidic conditions for both mineralized composites and remained in the range of specific release limits for this metal. In addition, both mineralized composite films exhibited distinctive antimicrobial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria. Overall, the Cu-carbonate and Cu-phosphate mineralized agar films showed potential to be used for food packaging materials, agriculture or medical purposes.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Tailoring the physico-chemical and antimicrobial properties of agar-based films by in situ formation of Cu-mineral phase
EP  - 358
SP  - 352
VL  - 119
DO  - 10.1016/j.eurpolymj.2019.08.004
ER  - 

@article{
author = "Radovanović, Neda and Malagurski, Ivana and Lević, Steva and Gordić, Milan V. and Petrović, Jelena and Pavlović, Vladimir B. and Mitrić, Miodrag and Nešić, Aleksandra and Dimitrijević-Branković, Suzana",
year = "2019",
abstract = "New agar-based composite films with increasing Cu-carbonate and Cu-phosphate mineral phase content were prepared by in situ mineralization and solvent casting method. SEM and optical analysis revealed that Cu-carbonate phase had better compatibility with agar matrix than Cu-phosphate phase. Incorporation of both mineral phases improved mechanical and water vapor barrier properties of the obtained mineralized films, in concentration dependent manner. When 5 mM of carbonate precursor was incorporated into agar matrix, mechanical resistance was enchanced for 44% and water vapor barrier property for 40%. The release of Cu (II) was higher in acidic conditions for both mineralized composites and remained in the range of specific release limits for this metal. In addition, both mineralized composite films exhibited distinctive antimicrobial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria. Overall, the Cu-carbonate and Cu-phosphate mineralized agar films showed potential to be used for food packaging materials, agriculture or medical purposes.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Tailoring the physico-chemical and antimicrobial properties of agar-based films by in situ formation of Cu-mineral phase",
pages = "358-352",
volume = "119",
doi = "10.1016/j.eurpolymj.2019.08.004"
}

Radovanović, N., Malagurski, I., Lević, S., Gordić, M. V., Petrović, J., Pavlović, V. B., Mitrić, M., Nešić, A.,& Dimitrijević-Branković, S.. (2019). Tailoring the physico-chemical and antimicrobial properties of agar-based films by in situ formation of Cu-mineral phase. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 119, 352-358.
https://doi.org/10.1016/j.eurpolymj.2019.08.004

Radovanović N, Malagurski I, Lević S, Gordić MV, Petrović J, Pavlović VB, Mitrić M, Nešić A, Dimitrijević-Branković S. Tailoring the physico-chemical and antimicrobial properties of agar-based films by in situ formation of Cu-mineral phase. in European Polymer Journal. 2019;119:352-358.
doi:10.1016/j.eurpolymj.2019.08.004 .

Radovanović, Neda, Malagurski, Ivana, Lević, Steva, Gordić, Milan V., Petrović, Jelena, Pavlović, Vladimir B., Mitrić, Miodrag, Nešić, Aleksandra, Dimitrijević-Branković, Suzana, "Tailoring the physico-chemical and antimicrobial properties of agar-based films by in situ formation of Cu-mineral phase" in European Polymer Journal, 119 (2019):352-358,
https://doi.org/10.1016/j.eurpolymj.2019.08.004 . .

TY  - JOUR
AU  - Meseldžija, Slađana
AU  - Petrović, Jelena
AU  - Onjia, Antonije
AU  - Volkov-Husović, Tatjana
AU  - Nešić, Aleksandra
AU  - Vukelić, Nikola
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4258
AB  - In this study, unmodified lemon peel, as agro-industrial waste, was used to investigate removal efficiency of copper ions from aqueous solutions and mining wastewater. The effects of solution pH, adsorption time, metal ion concentration and dose of adsorbent on sorption were studied in batch experiments. The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 min. The maximum removal of copper ions from mining-wastewater at natural pH (pH3) was 89%, indicating that lemon peel could be employed as an effective low-cost adsorbent for removal of copper ions from wastewater at acidic conditions.
PB  - Elsevier Science Inc, New York
T2  - Journal of Industrial and Engineering Chemistry
T1  - Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater
EP  - 252
SP  - 246
VL  - 75
DO  - 10.1016/j.jiec.2019.03.031
ER  - 

@article{
author = "Meseldžija, Slađana and Petrović, Jelena and Onjia, Antonije and Volkov-Husović, Tatjana and Nešić, Aleksandra and Vukelić, Nikola",
year = "2019",
abstract = "In this study, unmodified lemon peel, as agro-industrial waste, was used to investigate removal efficiency of copper ions from aqueous solutions and mining wastewater. The effects of solution pH, adsorption time, metal ion concentration and dose of adsorbent on sorption were studied in batch experiments. The maximum Langmuir adsorption capacity was evaluated to be 13.2 mg/g at optimum contact time of 15 min. The maximum removal of copper ions from mining-wastewater at natural pH (pH3) was 89%, indicating that lemon peel could be employed as an effective low-cost adsorbent for removal of copper ions from wastewater at acidic conditions.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Industrial and Engineering Chemistry",
title = "Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater",
pages = "252-246",
volume = "75",
doi = "10.1016/j.jiec.2019.03.031"
}

Meseldžija, S., Petrović, J., Onjia, A., Volkov-Husović, T., Nešić, A.,& Vukelić, N.. (2019). Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater. in Journal of Industrial and Engineering Chemistry
Elsevier Science Inc, New York., 75, 246-252.
https://doi.org/10.1016/j.jiec.2019.03.031

Meseldžija S, Petrović J, Onjia A, Volkov-Husović T, Nešić A, Vukelić N. Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater. in Journal of Industrial and Engineering Chemistry. 2019;75:246-252.
doi:10.1016/j.jiec.2019.03.031 .

Meseldžija, Slađana, Petrović, Jelena, Onjia, Antonije, Volkov-Husović, Tatjana, Nešić, Aleksandra, Vukelić, Nikola, "Utilization of agro-industrial waste for removal of copper ions from aqueous solutions and mining-wastewater" in Journal of Industrial and Engineering Chemistry, 75 (2019):246-252,
https://doi.org/10.1016/j.jiec.2019.03.031 . .

TY  - JOUR
AU  - Radovanović, Neda
AU  - Malagurski, Ivana
AU  - Lević, Steva
AU  - Nešić, Aleksandra
AU  - Cabrera-Barjas, Gustavo
AU  - Kalušević, Ana
AU  - Nedović, Viktor
AU  - Pavlović, Vladimir
AU  - Dimitrijević-Branković, Suzana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4048
AB  - Agar-based composites with different Zn-carbonate mineral phase content were prepared by in situ mineralization and the solvent casting method. The mineral phase within the composite films was identified as hydrozincite, Zn-5(CO3)(2)(OH)(6). The presence of the mineral phase improved, both mechanical and water vapor permeability properties of the obtained composite films, in a concentration-dependent manner. The release of zinc ions from composite films is in accepted levels (up to 2.5%), and sufficient to provide complete inhibition growth of S. Aureus. The results of this study suggest that agar/Zn-carbonate composites could be potentially used as affordable, eco-friendly and functional materials with tunable properties for food packaging, agriculture or biomedical application. In situ procedure offers possibilities for tailoring the physical-chemical properties of composite films, by varying the Zn-mineral phase load.
PB  - Elsevier, Amsterdam
T2  - Materials Letters
T1  - Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films
VL  - 255
DO  - 10.1016/j.matlet.2019.126572
ER  - 

@article{
author = "Radovanović, Neda and Malagurski, Ivana and Lević, Steva and Nešić, Aleksandra and Cabrera-Barjas, Gustavo and Kalušević, Ana and Nedović, Viktor and Pavlović, Vladimir and Dimitrijević-Branković, Suzana",
year = "2019",
abstract = "Agar-based composites with different Zn-carbonate mineral phase content were prepared by in situ mineralization and the solvent casting method. The mineral phase within the composite films was identified as hydrozincite, Zn-5(CO3)(2)(OH)(6). The presence of the mineral phase improved, both mechanical and water vapor permeability properties of the obtained composite films, in a concentration-dependent manner. The release of zinc ions from composite films is in accepted levels (up to 2.5%), and sufficient to provide complete inhibition growth of S. Aureus. The results of this study suggest that agar/Zn-carbonate composites could be potentially used as affordable, eco-friendly and functional materials with tunable properties for food packaging, agriculture or biomedical application. In situ procedure offers possibilities for tailoring the physical-chemical properties of composite films, by varying the Zn-mineral phase load.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Letters",
title = "Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films",
volume = "255",
doi = "10.1016/j.matlet.2019.126572"
}

Radovanović, N., Malagurski, I., Lević, S., Nešić, A., Cabrera-Barjas, G., Kalušević, A., Nedović, V., Pavlović, V.,& Dimitrijević-Branković, S.. (2019). Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films. in Materials Letters
Elsevier, Amsterdam., 255.
https://doi.org/10.1016/j.matlet.2019.126572

Radovanović N, Malagurski I, Lević S, Nešić A, Cabrera-Barjas G, Kalušević A, Nedović V, Pavlović V, Dimitrijević-Branković S. Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films. in Materials Letters. 2019;255.
doi:10.1016/j.matlet.2019.126572 .

Radovanović, Neda, Malagurski, Ivana, Lević, Steva, Nešić, Aleksandra, Cabrera-Barjas, Gustavo, Kalušević, Ana, Nedović, Viktor, Pavlović, Vladimir, Dimitrijević-Branković, Suzana, "Influence of different concentrations of Zn-carbonate phase on physical-chemical properties of antimicrobial agar composite films" in Materials Letters, 255 (2019),
https://doi.org/10.1016/j.matlet.2019.126572 . .

TY  - JOUR
AU  - Šešlija, Sanja
AU  - Nešić, Aleksandra
AU  - Ružić, Jovana
AU  - Kalagasidis Krušić, Melina
AU  - Veličković, Sava
AU  - Avolio, Roberto
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3951
AB  - The aim of this study was the development of novel polysaccharide based films intended to be used as edible food packaging material. The films were prepared by solution casting method using highly methoxylated pectin (PEC) and poly(ethylene glycol) (PEG) of various molecular weights (400, 600 and 1000 gmol(-1)) in different ratios (5:1, 3:1 and 1:1). The film formation was supported by hydrogen bonding between PEC and PEG, which was evidenced by means of ATR-FTIR and NMR analysis. TGA revealed that generally PEG behaves like a pro-degrading agent for pectin, except in the case of PEC/PEG film with a ratio of 1:1. Furthermore, DSC thermograms indicated that PEG1000 exists as a separate phase in the pectin matrix while the formulations with PEG400 and PEG600 showed mainly amorphous morphology. The addition of PEG enhanced the plasticization of PEC films, as evidenced by progressive decreasing of the glass transition temperature values (T-g). The tensile test measurements showed that increasing concentration of PEG produced weaker and more flexibile films. Due to the increased molecular mobility, the pectin phase became more permeable to water vapor as the PEG concentration increased. The obtained results showed that the combination of both polymers resulted in interesting bio -inspired edible films with the potential to compete with commercially used synthetic package materials.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Hydrocolloids
T1  - Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation
EP  - 501
SP  - 494
VL  - 77
DO  - 10.1016/j.foodhyd.2017.10.027
ER  - 

@article{
author = "Šešlija, Sanja and Nešić, Aleksandra and Ružić, Jovana and Kalagasidis Krušić, Melina and Veličković, Sava and Avolio, Roberto and Santagata, Gabriella and Malinconico, Mario",
year = "2018",
abstract = "The aim of this study was the development of novel polysaccharide based films intended to be used as edible food packaging material. The films were prepared by solution casting method using highly methoxylated pectin (PEC) and poly(ethylene glycol) (PEG) of various molecular weights (400, 600 and 1000 gmol(-1)) in different ratios (5:1, 3:1 and 1:1). The film formation was supported by hydrogen bonding between PEC and PEG, which was evidenced by means of ATR-FTIR and NMR analysis. TGA revealed that generally PEG behaves like a pro-degrading agent for pectin, except in the case of PEC/PEG film with a ratio of 1:1. Furthermore, DSC thermograms indicated that PEG1000 exists as a separate phase in the pectin matrix while the formulations with PEG400 and PEG600 showed mainly amorphous morphology. The addition of PEG enhanced the plasticization of PEC films, as evidenced by progressive decreasing of the glass transition temperature values (T-g). The tensile test measurements showed that increasing concentration of PEG produced weaker and more flexibile films. Due to the increased molecular mobility, the pectin phase became more permeable to water vapor as the PEG concentration increased. The obtained results showed that the combination of both polymers resulted in interesting bio -inspired edible films with the potential to compete with commercially used synthetic package materials.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Hydrocolloids",
title = "Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation",
pages = "501-494",
volume = "77",
doi = "10.1016/j.foodhyd.2017.10.027"
}

Šešlija, S., Nešić, A., Ružić, J., Kalagasidis Krušić, M., Veličković, S., Avolio, R., Santagata, G.,& Malinconico, M.. (2018). Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation. in Food Hydrocolloids
Elsevier Sci Ltd, Oxford., 77, 494-501.
https://doi.org/10.1016/j.foodhyd.2017.10.027

Šešlija S, Nešić A, Ružić J, Kalagasidis Krušić M, Veličković S, Avolio R, Santagata G, Malinconico M. Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation. in Food Hydrocolloids. 2018;77:494-501.
doi:10.1016/j.foodhyd.2017.10.027 .

Šešlija, Sanja, Nešić, Aleksandra, Ružić, Jovana, Kalagasidis Krušić, Melina, Veličković, Sava, Avolio, Roberto, Santagata, Gabriella, Malinconico, Mario, "Edible blend films of pectin and poly(ethylene glycol): Preparation and physico-chemical evaluation" in Food Hydrocolloids, 77 (2018):494-501,
https://doi.org/10.1016/j.foodhyd.2017.10.027 . .

TY  - JOUR
AU  - Šešlija, Sanja
AU  - Nešić, Aleksandra
AU  - Lučić-Škorić, Marija
AU  - Kalagasidis Krušić, Melina
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4038
AB  - The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas -OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeability values are in the range of 1.32x10(-7) up to 2.03x10(-7) wg/m h Pa.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Macromolecular Symposia
T1  - Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material
IS  - 1
VL  - 378
DO  - 10.1002/masy.201600163
ER  - 

@article{
author = "Šešlija, Sanja and Nešić, Aleksandra and Lučić-Škorić, Marija and Kalagasidis Krušić, Melina and Santagata, Gabriella and Malinconico, Mario",
year = "2018",
abstract = "The present paper reports on pectin based films modified with carboxymethyl cellulose intended for food packaging. The films are prepared by solvent-casting method with different carboxymethyl cellulose content and cross-linker concentration (Ca2+ ions) in the presence of glycerol as a plasticizer. FT-IR spectra of the prepared films propose that carboxyl group from pectin are mainly involved in interactions with CMC, whereas -OH groups are mainly involved in self-associated hydrogen bonding of neat polymers. Further, an addition of carboxymethyl cellulose improved mechanical properties compared to pure pectin films, while TGA analysis confirmed satisfying thermal stability regarding their potential application as packaging material. Finally, water vapor permeability values are in the range of 1.32x10(-7) up to 2.03x10(-7) wg/m h Pa.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Macromolecular Symposia",
title = "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material",
number = "1",
volume = "378",
doi = "10.1002/masy.201600163"
}

Šešlija, S., Nešić, A., Lučić-Škorić, M., Kalagasidis Krušić, M., Santagata, G.,& Malinconico, M.. (2018). Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia
Wiley-VCH Verlag Gmbh, Weinheim., 378(1).
https://doi.org/10.1002/masy.201600163

Šešlija S, Nešić A, Lučić-Škorić M, Kalagasidis Krušić M, Santagata G, Malinconico M. Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material. in Macromolecular Symposia. 2018;378(1).
doi:10.1002/masy.201600163 .

Šešlija, Sanja, Nešić, Aleksandra, Lučić-Škorić, Marija, Kalagasidis Krušić, Melina, Santagata, Gabriella, Malinconico, Mario, "Pectin/Carboxymethylcellulose Films as a Potential Food Packaging Material" in Macromolecular Symposia, 378, no. 1 (2018),
https://doi.org/10.1002/masy.201600163 . .

TY  - CONF
AU  - Radovanović, Neda
AU  - Miljković, Miona
AU  - Davidović, Slađana
AU  - Malagurski, Ivana
AU  - Gordić, Milan
AU  - Nešić, Aleksandra
AU  - Dimitrijević-Branković, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6286
C3  - Polychar 26 World Forum on Advanced Materials
T1  - ACTIVE AGAR MINERALIZED COMPOSITE FILMS INTENDED FOR FOOD PACKAGING
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6286
ER  - 

@conference{
author = "Radovanović, Neda and Miljković, Miona and Davidović, Slađana and Malagurski, Ivana and Gordić, Milan and Nešić, Aleksandra and Dimitrijević-Branković, Suzana",
year = "2018",
journal = "Polychar 26 World Forum on Advanced Materials",
title = "ACTIVE AGAR MINERALIZED COMPOSITE FILMS INTENDED FOR FOOD PACKAGING",
pages = "94",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6286"
}

Radovanović, N., Miljković, M., Davidović, S., Malagurski, I., Gordić, M., Nešić, A.,& Dimitrijević-Branković, S.. (2018). ACTIVE AGAR MINERALIZED COMPOSITE FILMS INTENDED FOR FOOD PACKAGING. in Polychar 26 World Forum on Advanced Materials, 94.
https://hdl.handle.net/21.15107/rcub_technorep_6286

Radovanović N, Miljković M, Davidović S, Malagurski I, Gordić M, Nešić A, Dimitrijević-Branković S. ACTIVE AGAR MINERALIZED COMPOSITE FILMS INTENDED FOR FOOD PACKAGING. in Polychar 26 World Forum on Advanced Materials. 2018;:94.
https://hdl.handle.net/21.15107/rcub_technorep_6286 .

Radovanović, Neda, Miljković, Miona, Davidović, Slađana, Malagurski, Ivana, Gordić, Milan, Nešić, Aleksandra, Dimitrijević-Branković, Suzana, "ACTIVE AGAR MINERALIZED COMPOSITE FILMS INTENDED FOR FOOD PACKAGING" in Polychar 26 World Forum on Advanced Materials (2018):94,
https://hdl.handle.net/21.15107/rcub_technorep_6286 .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Gordić, Milan V.
AU  - Davidović, Slađana
AU  - Radovanović, Željko
AU  - Nedeljković, Jovan
AU  - Smirnova, Irina
AU  - Gurikov, Pavel
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4006
AB  - Environmental-friendly pectin-TiO2 nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2 colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2 drying. The influence of TiO2 nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2 nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022-0.025Wm(-1) K-1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2 nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Pectin-based nanocomposite aerogels for potential insulated food packaging application
EP  - 135
SP  - 128
VL  - 195
DO  - 10.1016/j.carbpol.2018.04.076
ER  - 

@article{
author = "Nešić, Aleksandra and Gordić, Milan V. and Davidović, Slađana and Radovanović, Željko and Nedeljković, Jovan and Smirnova, Irina and Gurikov, Pavel",
year = "2018",
abstract = "Environmental-friendly pectin-TiO2 nanocomposite aerogels were prepared via sol-gel process and subsequent drying under supercritical conditions. The first step includes dissolution of pectin in water, addition of proper amount of TiO2 colloid and crosslinking reaction induced in the presence of tert-butanol and zinc ions. Then, the gels are subjected to the solvent exchange and supercritical CO2 drying. The influence of TiO2 nanoparticles on the textural, mechanical, thermal and antibacterial properties of aerogels was investigated. Results indicate that in the presence of TiO2 nanoparticles (NPs) mechanical, thermal and antimicrobial properties of pectin-based aerogels are improved in comparison to the control pectin aerogels. It should be emphasized that the thermal conductivity of pectin-based aerogels (0.022-0.025Wm(-1) K-1) is lower than the thermal conductivity of air. Generally, the results propose that the pectin-TiO2 nanocomposite aerogels, as bio-based material, might have potential application for the storage of temperature-sensitive food.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Pectin-based nanocomposite aerogels for potential insulated food packaging application",
pages = "135-128",
volume = "195",
doi = "10.1016/j.carbpol.2018.04.076"
}

Nešić, A., Gordić, M. V., Davidović, S., Radovanović, Ž., Nedeljković, J., Smirnova, I.,& Gurikov, P.. (2018). Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 195, 128-135.
https://doi.org/10.1016/j.carbpol.2018.04.076

Nešić A, Gordić MV, Davidović S, Radovanović Ž, Nedeljković J, Smirnova I, Gurikov P. Pectin-based nanocomposite aerogels for potential insulated food packaging application. in Carbohydrate Polymers. 2018;195:128-135.
doi:10.1016/j.carbpol.2018.04.076 .

Nešić, Aleksandra, Gordić, Milan V., Davidović, Slađana, Radovanović, Željko, Nedeljković, Jovan, Smirnova, Irina, Gurikov, Pavel, "Pectin-based nanocomposite aerogels for potential insulated food packaging application" in Carbohydrate Polymers, 195 (2018):128-135,
https://doi.org/10.1016/j.carbpol.2018.04.076 . .

TY  - JOUR
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Tomić, Miloš
AU  - Gordić, Milan V.
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4017
AB  - The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Young's modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3
EP  - 213
SP  - 207
VL  - 184
DO  - 10.1016/j.carbpol.2017.12.061
ER  - 

@article{
author = "Davidović, Slađana and Miljković, Miona and Tomić, Miloš and Gordić, Milan V. and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "The aim of this study was to develop dextran-based edible films plasticized by sorbitol. In order to optimise the film-forming formulation, response surface methodology was used. The influence of dextran and sorbitol concentration on the mechanical and water vapour barrier properties of obtained films was investigated. The results showed that both parameters exhibited significant effect on the water vapour permeability of a film. Both dextran and sorbitol concentration had significant influence on tensile strength and elongation at break, whereas only sorbitol concentration had significant effect on Young's modulus. After optimisation by desirability approach, it was found that a film made of 3.40 wt% of dextran and 20.43 wt% of sorbitol showed the lowest water vapour permeability and the highest tensile strength and elasticity.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3",
pages = "213-207",
volume = "184",
doi = "10.1016/j.carbpol.2017.12.061"
}

Davidović, S., Miljković, M., Tomić, M., Gordić, M. V., Nešić, A.,& Dimitrijević, S.. (2018). Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 184, 207-213.
https://doi.org/10.1016/j.carbpol.2017.12.061

Davidović S, Miljković M, Tomić M, Gordić MV, Nešić A, Dimitrijević S. Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3. in Carbohydrate Polymers. 2018;184:207-213.
doi:10.1016/j.carbpol.2017.12.061 .

Davidović, Slađana, Miljković, Miona, Tomić, Miloš, Gordić, Milan V., Nešić, Aleksandra, Dimitrijević, Suzana, "Response surface methodology for optimisation of edible coatings based on dextran from Leuconostoc mesenteroides T3" in Carbohydrate Polymers, 184 (2018):207-213,
https://doi.org/10.1016/j.carbpol.2017.12.061 . .

TY  - CONF
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Radovanović, Neda
AU  - Gordić, Milan
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6204
AB  - Current trends in food biotechnology are focused on replacing synthetic polymers used for food packages by the natural ones. Biopolymers are made by sustainable processes in a cheap way. Moreover, they are nontoxic and can serve as a good alternative to traditional (petroleum) food packaging, due to great film-formation properties in a form of edible films and coatings for food products. Various polysaccharides, proteins, and lipids have been intensively investigated as edible materials that could improve the food quality, freshness, and provide food safety. However, natural polymers usually lack of antioxidative and/or antimicrobial properties. Therefore, many synthetic and natural additives can be incorporated into edible films. Among them, extracts of medicinal plants are giving more attention due to their safeness and proved health benefits.
The aim of this study was to obtain edible films based on dextran, with antioxidative and antimicrobial properties. Dextran obtained in our lab was used for preparing edible film with sorbitol as a plasticizer, while pulverized waste biomass obtained from the processing of medicinal herb yarrow (Achillea millefolium) was used as a source of polyphenols. It has previously been shown1 that dextran based films had excellent mechanical and water vapor barrier properties. In this work, spray dried ethanol extract of Achillea millefolium dust (AME) was incorporated into dextran films in concentrations 2, 3, and 4% (w/v). The composite films were analyzed regarding antioxidative, antimicrobial, and mechanical properties. All films showed high antioxidative activity (90% reduction of DPPH radical). However, to obtain high antimicrobial activity (higher than 50%), 4% of AME was required. Composite films showed antimicrobial activity against three Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes and Enterococcus faecalis and one Gram-negative bacterium (Pseudomonas aeruginosa). Incorporation of AME into dextran film showed positive effect on tensile strength and negative effect on elongation. Composite film with the best mechanical properties (tensile strength 3.5 MPa and elongation at break 37%) was the film containing 4% AME.
C3  - Polychar 26 World Forum on Advanced Materials
T1  - ANTIOXIDANT AND ANTIMICROBIAL EDIBLE FILMS BASED ON DEXTRAN CONTAINING POLYPHENOLS FROM YARROW EXTRACT
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6204
ER  - 

@conference{
author = "Davidović, Slađana and Miljković, Miona and Radovanović, Neda and Gordić, Milan and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "Current trends in food biotechnology are focused on replacing synthetic polymers used for food packages by the natural ones. Biopolymers are made by sustainable processes in a cheap way. Moreover, they are nontoxic and can serve as a good alternative to traditional (petroleum) food packaging, due to great film-formation properties in a form of edible films and coatings for food products. Various polysaccharides, proteins, and lipids have been intensively investigated as edible materials that could improve the food quality, freshness, and provide food safety. However, natural polymers usually lack of antioxidative and/or antimicrobial properties. Therefore, many synthetic and natural additives can be incorporated into edible films. Among them, extracts of medicinal plants are giving more attention due to their safeness and proved health benefits.
The aim of this study was to obtain edible films based on dextran, with antioxidative and antimicrobial properties. Dextran obtained in our lab was used for preparing edible film with sorbitol as a plasticizer, while pulverized waste biomass obtained from the processing of medicinal herb yarrow (Achillea millefolium) was used as a source of polyphenols. It has previously been shown1 that dextran based films had excellent mechanical and water vapor barrier properties. In this work, spray dried ethanol extract of Achillea millefolium dust (AME) was incorporated into dextran films in concentrations 2, 3, and 4% (w/v). The composite films were analyzed regarding antioxidative, antimicrobial, and mechanical properties. All films showed high antioxidative activity (90% reduction of DPPH radical). However, to obtain high antimicrobial activity (higher than 50%), 4% of AME was required. Composite films showed antimicrobial activity against three Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes and Enterococcus faecalis and one Gram-negative bacterium (Pseudomonas aeruginosa). Incorporation of AME into dextran film showed positive effect on tensile strength and negative effect on elongation. Composite film with the best mechanical properties (tensile strength 3.5 MPa and elongation at break 37%) was the film containing 4% AME.",
journal = "Polychar 26 World Forum on Advanced Materials",
title = "ANTIOXIDANT AND ANTIMICROBIAL EDIBLE FILMS BASED ON DEXTRAN CONTAINING POLYPHENOLS FROM YARROW EXTRACT",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6204"
}

Davidović, S., Miljković, M., Radovanović, N., Gordić, M., Nešić, A.,& Dimitrijević, S.. (2018). ANTIOXIDANT AND ANTIMICROBIAL EDIBLE FILMS BASED ON DEXTRAN CONTAINING POLYPHENOLS FROM YARROW EXTRACT. in Polychar 26 World Forum on Advanced Materials, 72.
https://hdl.handle.net/21.15107/rcub_technorep_6204

Davidović S, Miljković M, Radovanović N, Gordić M, Nešić A, Dimitrijević S. ANTIOXIDANT AND ANTIMICROBIAL EDIBLE FILMS BASED ON DEXTRAN CONTAINING POLYPHENOLS FROM YARROW EXTRACT. in Polychar 26 World Forum on Advanced Materials. 2018;:72.
https://hdl.handle.net/21.15107/rcub_technorep_6204 .

Davidović, Slađana, Miljković, Miona, Radovanović, Neda, Gordić, Milan, Nešić, Aleksandra, Dimitrijević, Suzana, "ANTIOXIDANT AND ANTIMICROBIAL EDIBLE FILMS BASED ON DEXTRAN CONTAINING POLYPHENOLS FROM YARROW EXTRACT" in Polychar 26 World Forum on Advanced Materials (2018):72,
https://hdl.handle.net/21.15107/rcub_technorep_6204 .

TY  - CONF
AU  - Miljković, Miona
AU  - Davidović, Slađana
AU  - Radovanović, Neda
AU  - Gordić, Milan
AU  - Carević, Milica
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6239
AB  - Dextransucrase (DS), the extracellular enzyme is of immense industrial importance, due to ability to produce dextran and oligosaccharides (OS). Worldwide interest in OS has been increasing, since they have been accorded the prebiotic status. However, the industrial application of DS for OS synthesis is limited, due to low yield of enzyme production and its low catalytic activity. Hence, there is a great interest for development of new technologies that can provide improved performance of biocatalyst. Enzyme immobilization technology is considered to be a crucial step for cheaper and more efficient usage of DS. Entrapment is one of the widely investigated immobilization methods, where enzymes are enclosed or confined within the polymer matrix without altering their native structure, developing bioreactors for commercial applications. Different matrices such as polyacryl-amide gel, alginate beads and agar–agar have been used for the entrapment of different enzymes and among them agar–agar is a biocompatible, non-toxic and strong solidifying agent for immobilization of various enzymes.
In this work, the entrapment of DS was initiated by different quantity (1:9, 1:4 and 1:1) of dialyzed enzyme into agar- agar solution. Agar solution was prepared in distilled water by vigorous shaking at 100°C, autoclaved and was allowed to cool to 40–45°C. Afterwards, enzyme was incorporated and mixed thoroughly. This mixture was immediately poured into a clean Petri plate and left to solidify at room temperature. Polymer films with and without immobilized DS were analyzed in terms of enzyme activity and reusability and mechanical properties (tensile strength, elongation at break and elastic modulus). In order to remove un-entrapped enzyme the films were washed with double deionized water and sodium acetate buffer (pH 5.4) three times prior to enzymatic assay. For quantitative analysis of samples for OS production a Dionex Ultimate 3000 HPLC system was used. 
Results showed that maximum immobilization yield (74.11%) was achieved by use of 2 % agar and (1:9) enzyme: agar ratio. HPLC analysis confirmed the similar trend of OS formation in immobilized samples compared to free enzyme. The lowest tested fraction of enzyme immobilized into polymer matrix (1:9) improved tensile strength of films in comparison with control film, whereas higher concentration of enzyme led to decrease in mechanical resistance of films. Scanning electron microscopy of agar films before and after DS entrapment revealed significant morphological change on the matrix surface. Considering the economic feasibility, the entrapped DS indicated imperative recycling efficiency up to six reaction cycles. The results of this study revealed that an easily available and inexpensive matrix could be successfully employed for DS immobilization and OS production.
C3  - PolyChar 26 World Forum on Advanced Materials
T1  - DEXTRANSUCRASE ENTRAPMENT AS AN EFFICIENT ALTERNATIVE FOR INCREASED RECYCLING EFFICIENCY OF FREE ENZYME WITHIN AGAR-AGAR FILM MATRIX
SP  - 88
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6239
ER  - 

@conference{
author = "Miljković, Miona and Davidović, Slađana and Radovanović, Neda and Gordić, Milan and Carević, Milica and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2018",
abstract = "Dextransucrase (DS), the extracellular enzyme is of immense industrial importance, due to ability to produce dextran and oligosaccharides (OS). Worldwide interest in OS has been increasing, since they have been accorded the prebiotic status. However, the industrial application of DS for OS synthesis is limited, due to low yield of enzyme production and its low catalytic activity. Hence, there is a great interest for development of new technologies that can provide improved performance of biocatalyst. Enzyme immobilization technology is considered to be a crucial step for cheaper and more efficient usage of DS. Entrapment is one of the widely investigated immobilization methods, where enzymes are enclosed or confined within the polymer matrix without altering their native structure, developing bioreactors for commercial applications. Different matrices such as polyacryl-amide gel, alginate beads and agar–agar have been used for the entrapment of different enzymes and among them agar–agar is a biocompatible, non-toxic and strong solidifying agent for immobilization of various enzymes.
In this work, the entrapment of DS was initiated by different quantity (1:9, 1:4 and 1:1) of dialyzed enzyme into agar- agar solution. Agar solution was prepared in distilled water by vigorous shaking at 100°C, autoclaved and was allowed to cool to 40–45°C. Afterwards, enzyme was incorporated and mixed thoroughly. This mixture was immediately poured into a clean Petri plate and left to solidify at room temperature. Polymer films with and without immobilized DS were analyzed in terms of enzyme activity and reusability and mechanical properties (tensile strength, elongation at break and elastic modulus). In order to remove un-entrapped enzyme the films were washed with double deionized water and sodium acetate buffer (pH 5.4) three times prior to enzymatic assay. For quantitative analysis of samples for OS production a Dionex Ultimate 3000 HPLC system was used. 
Results showed that maximum immobilization yield (74.11%) was achieved by use of 2 % agar and (1:9) enzyme: agar ratio. HPLC analysis confirmed the similar trend of OS formation in immobilized samples compared to free enzyme. The lowest tested fraction of enzyme immobilized into polymer matrix (1:9) improved tensile strength of films in comparison with control film, whereas higher concentration of enzyme led to decrease in mechanical resistance of films. Scanning electron microscopy of agar films before and after DS entrapment revealed significant morphological change on the matrix surface. Considering the economic feasibility, the entrapped DS indicated imperative recycling efficiency up to six reaction cycles. The results of this study revealed that an easily available and inexpensive matrix could be successfully employed for DS immobilization and OS production.",
journal = "PolyChar 26 World Forum on Advanced Materials",
title = "DEXTRANSUCRASE ENTRAPMENT AS AN EFFICIENT ALTERNATIVE FOR INCREASED RECYCLING EFFICIENCY OF FREE ENZYME WITHIN AGAR-AGAR FILM MATRIX",
pages = "88",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6239"
}

Miljković, M., Davidović, S., Radovanović, N., Gordić, M., Carević, M., Nešić, A.,& Dimitrijević, S.. (2018). DEXTRANSUCRASE ENTRAPMENT AS AN EFFICIENT ALTERNATIVE FOR INCREASED RECYCLING EFFICIENCY OF FREE ENZYME WITHIN AGAR-AGAR FILM MATRIX. in PolyChar 26 World Forum on Advanced Materials, 88.
https://hdl.handle.net/21.15107/rcub_technorep_6239

Miljković M, Davidović S, Radovanović N, Gordić M, Carević M, Nešić A, Dimitrijević S. DEXTRANSUCRASE ENTRAPMENT AS AN EFFICIENT ALTERNATIVE FOR INCREASED RECYCLING EFFICIENCY OF FREE ENZYME WITHIN AGAR-AGAR FILM MATRIX. in PolyChar 26 World Forum on Advanced Materials. 2018;:88.
https://hdl.handle.net/21.15107/rcub_technorep_6239 .

Miljković, Miona, Davidović, Slađana, Radovanović, Neda, Gordić, Milan, Carević, Milica, Nešić, Aleksandra, Dimitrijević, Suzana, "DEXTRANSUCRASE ENTRAPMENT AS AN EFFICIENT ALTERNATIVE FOR INCREASED RECYCLING EFFICIENCY OF FREE ENZYME WITHIN AGAR-AGAR FILM MATRIX" in PolyChar 26 World Forum on Advanced Materials (2018):88,
https://hdl.handle.net/21.15107/rcub_technorep_6239 .

TY  - JOUR
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Radovanović, Neda
AU  - Dimitrijević, Suzana
AU  - Nešić, Aleksandra
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6183
AB  - In this work, antimicrobial agar based nanocomposite films containing silver nanoparticles were prepared. For the synthesis, a masterbatch of in situ stabilized silver nanoparticles produced in agar solution was used. The incorporation of silver nanoparticles improved the mechanical and water vapor barrier resistance of films, in comparison to the neat agar film without silver. Agar/Ag films showed high antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans. The migration of silver nanoparticles from the agar films, assessed by food contact tests, was less than 0.05 mg/g which is under the legal limits. These results indicated that the agar films incorporated with silver nanoparticles have potential to be used as packaging material.
T2  - Journal of International Scientific Publications, Agriculture & Food
T1  - PHYSICO-CHEMICAL PROPERTIES OF AGAR/SILVER NANOCOMPOSITE FILMS INTENDED FOR FOOD PACKAGING APPLICATION
EP  - 146
SP  - 139
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6183
ER  - 

@article{
author = "Davidović, Slađana and Miljković, Miona and Radovanović, Neda and Dimitrijević, Suzana and Nešić, Aleksandra",
year = "2017",
abstract = "In this work, antimicrobial agar based nanocomposite films containing silver nanoparticles were prepared. For the synthesis, a masterbatch of in situ stabilized silver nanoparticles produced in agar solution was used. The incorporation of silver nanoparticles improved the mechanical and water vapor barrier resistance of films, in comparison to the neat agar film without silver. Agar/Ag films showed high antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans. The migration of silver nanoparticles from the agar films, assessed by food contact tests, was less than 0.05 mg/g which is under the legal limits. These results indicated that the agar films incorporated with silver nanoparticles have potential to be used as packaging material.",
journal = "Journal of International Scientific Publications, Agriculture & Food",
title = "PHYSICO-CHEMICAL PROPERTIES OF AGAR/SILVER NANOCOMPOSITE FILMS INTENDED FOR FOOD PACKAGING APPLICATION",
pages = "146-139",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6183"
}

Davidović, S., Miljković, M., Radovanović, N., Dimitrijević, S.,& Nešić, A.. (2017). PHYSICO-CHEMICAL PROPERTIES OF AGAR/SILVER NANOCOMPOSITE FILMS INTENDED FOR FOOD PACKAGING APPLICATION. in Journal of International Scientific Publications, Agriculture & Food, 5, 139-146.
https://hdl.handle.net/21.15107/rcub_technorep_6183

Davidović S, Miljković M, Radovanović N, Dimitrijević S, Nešić A. PHYSICO-CHEMICAL PROPERTIES OF AGAR/SILVER NANOCOMPOSITE FILMS INTENDED FOR FOOD PACKAGING APPLICATION. in Journal of International Scientific Publications, Agriculture & Food. 2017;5:139-146.
https://hdl.handle.net/21.15107/rcub_technorep_6183 .

Davidović, Slađana, Miljković, Miona, Radovanović, Neda, Dimitrijević, Suzana, Nešić, Aleksandra, "PHYSICO-CHEMICAL PROPERTIES OF AGAR/SILVER NANOCOMPOSITE FILMS INTENDED FOR FOOD PACKAGING APPLICATION" in Journal of International Scientific Publications, Agriculture & Food, 5 (2017):139-146,
https://hdl.handle.net/21.15107/rcub_technorep_6183 .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Gordić, Milan V.
AU  - Onjia, Antonije
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Dimitrijević-Branković, Suzana
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3665
AB  - In this work, antimicrobial bioinspired films made from chitosan incorporated with triclosan were investigated. The tensile strenght of these films were in the range of 33 and 39 MPa, which presented satisfied mechanical stability comparable to the synthetic-based packages commonly used in industry. The addition of triclosan enhanced thermal stability and antimicrobial activity of chitosan films against Escherichia coli and Staphylococus aureus. Results obtained in this work demonstrated that chitosan/triclosan films could be potentially used as an eco-sustainable package in healthcare sector to prevent infections/contaminations.
PB  - Elsevier, Amsterdam
T2  - Materials Letters
T1  - Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector
EP  - 371
SP  - 368
VL  - 186
DO  - 10.1016/j.matlet.2016.10.028
ER  - 

@article{
author = "Nešić, Aleksandra and Gordić, Milan V. and Onjia, Antonije and Davidović, Slađana and Miljković, Miona and Dimitrijević-Branković, Suzana",
year = "2017",
abstract = "In this work, antimicrobial bioinspired films made from chitosan incorporated with triclosan were investigated. The tensile strenght of these films were in the range of 33 and 39 MPa, which presented satisfied mechanical stability comparable to the synthetic-based packages commonly used in industry. The addition of triclosan enhanced thermal stability and antimicrobial activity of chitosan films against Escherichia coli and Staphylococus aureus. Results obtained in this work demonstrated that chitosan/triclosan films could be potentially used as an eco-sustainable package in healthcare sector to prevent infections/contaminations.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Letters",
title = "Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector",
pages = "371-368",
volume = "186",
doi = "10.1016/j.matlet.2016.10.028"
}

Nešić, A., Gordić, M. V., Onjia, A., Davidović, S., Miljković, M.,& Dimitrijević-Branković, S.. (2017). Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector. in Materials Letters
Elsevier, Amsterdam., 186, 368-371.
https://doi.org/10.1016/j.matlet.2016.10.028

Nešić A, Gordić MV, Onjia A, Davidović S, Miljković M, Dimitrijević-Branković S. Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector. in Materials Letters. 2017;186:368-371.
doi:10.1016/j.matlet.2016.10.028 .

Nešić, Aleksandra, Gordić, Milan V., Onjia, Antonije, Davidović, Slađana, Miljković, Miona, Dimitrijević-Branković, Suzana, "Chitosan-triclosan films for potential use as bio-antimicrobial bags in healthcare sector" in Materials Letters, 186 (2017):368-371,
https://doi.org/10.1016/j.matlet.2016.10.028 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Onjia, Antonije
AU  - Davidović, Slađana
AU  - Dimitrijević, Suzana
AU  - Errico, Maria Emanuela
AU  - Santagata, Gabriella
AU  - Malinconico, Mario
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3671
AB  - In this study, pectin based films including different amounts of sodium alginate were prepared by casting method. All the films, with and without polyglycerol as plasticizer, were crosslinked with zinc ions in order to extend their potential functionality. The development of junction points, occurring during the crosslinking process with zinc ions, induced the increasing of free volume with following changing in chemico-physical properties of films. The inclusion of alginate in pectin based formulations improved the strength of zinc ions crosslinking network, whereas the addition of polyglycerol significantly improved mechanical performance. Finally, zinc-crosslinked films evidenced antimicrobial activity against the most common exploited pathogens: Staphylococcus Aureus, Escherichia Coli and Candida Albicans. These results suggest that zinc-crosslinked based films can be exploitable as novel bio-active biomaterials for protection and disinfection of medical devices.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity
EP  - 990
SP  - 981
VL  - 157
DO  - 10.1016/j.carbpol.2016.10.054
ER  - 

@article{
author = "Nešić, Aleksandra and Onjia, Antonije and Davidović, Slađana and Dimitrijević, Suzana and Errico, Maria Emanuela and Santagata, Gabriella and Malinconico, Mario",
year = "2017",
abstract = "In this study, pectin based films including different amounts of sodium alginate were prepared by casting method. All the films, with and without polyglycerol as plasticizer, were crosslinked with zinc ions in order to extend their potential functionality. The development of junction points, occurring during the crosslinking process with zinc ions, induced the increasing of free volume with following changing in chemico-physical properties of films. The inclusion of alginate in pectin based formulations improved the strength of zinc ions crosslinking network, whereas the addition of polyglycerol significantly improved mechanical performance. Finally, zinc-crosslinked films evidenced antimicrobial activity against the most common exploited pathogens: Staphylococcus Aureus, Escherichia Coli and Candida Albicans. These results suggest that zinc-crosslinked based films can be exploitable as novel bio-active biomaterials for protection and disinfection of medical devices.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity",
pages = "990-981",
volume = "157",
doi = "10.1016/j.carbpol.2016.10.054"
}

Nešić, A., Onjia, A., Davidović, S., Dimitrijević, S., Errico, M. E., Santagata, G.,& Malinconico, M.. (2017). Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 157, 981-990.
https://doi.org/10.1016/j.carbpol.2016.10.054

Nešić A, Onjia A, Davidović S, Dimitrijević S, Errico ME, Santagata G, Malinconico M. Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity. in Carbohydrate Polymers. 2017;157:981-990.
doi:10.1016/j.carbpol.2016.10.054 .

Nešić, Aleksandra, Onjia, Antonije, Davidović, Slađana, Dimitrijević, Suzana, Errico, Maria Emanuela, Santagata, Gabriella, Malinconico, Mario, "Design of pectin-sodium alginate based films for potential healthcare application: Study of chemico-physical interactions between the components of films and assessment of their antimicrobial activity" in Carbohydrate Polymers, 157 (2017):981-990,
https://doi.org/10.1016/j.carbpol.2016.10.054 . .

TY  - JOUR
AU  - Malagurski, Ivana
AU  - Lević, Steva
AU  - Nešić, Aleksandra
AU  - Mitrić, Miodrag
AU  - Pavlović, Vladimir B.
AU  - Dimitrijević-Branković, Suzana
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3539
AB  - New mineralized, agar-based nanocomposite films (Zn-carbonate and Zn-phosphate/agar) were produced by a combination of in situ precipitation and a casting method. The presence of minerals significantly influenced the morphology, properties and functionality of the obtained nanocomposites. Reinforcement with the Zn-mineral phase improved the mechanical properties of the carbonate-mineralized films, but had a negligible effect on the phosphate-mineralized samples. Both nanocomposites showed improved optical and thermal properties, better Zn(II) release potential in a slightly acidic environment and exhibited antimicrobial activity against S. aureus. These results suggest that Zn-mineralized agar nanocomposite films could be potentially used as affordable, eco-friendly and active food packaging materials.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Mineralized agar-based nanocomposite films: Potential food packaging materials with antimicrobial properties
EP  - 62
SP  - 55
VL  - 175
DO  - 10.1016/j.carbpol.2017.07.064
ER  - 

@article{
author = "Malagurski, Ivana and Lević, Steva and Nešić, Aleksandra and Mitrić, Miodrag and Pavlović, Vladimir B. and Dimitrijević-Branković, Suzana",
year = "2017",
abstract = "New mineralized, agar-based nanocomposite films (Zn-carbonate and Zn-phosphate/agar) were produced by a combination of in situ precipitation and a casting method. The presence of minerals significantly influenced the morphology, properties and functionality of the obtained nanocomposites. Reinforcement with the Zn-mineral phase improved the mechanical properties of the carbonate-mineralized films, but had a negligible effect on the phosphate-mineralized samples. Both nanocomposites showed improved optical and thermal properties, better Zn(II) release potential in a slightly acidic environment and exhibited antimicrobial activity against S. aureus. These results suggest that Zn-mineralized agar nanocomposite films could be potentially used as affordable, eco-friendly and active food packaging materials.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Mineralized agar-based nanocomposite films: Potential food packaging materials with antimicrobial properties",
pages = "62-55",
volume = "175",
doi = "10.1016/j.carbpol.2017.07.064"
}

Malagurski, I., Lević, S., Nešić, A., Mitrić, M., Pavlović, V. B.,& Dimitrijević-Branković, S.. (2017). Mineralized agar-based nanocomposite films: Potential food packaging materials with antimicrobial properties. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 175, 55-62.
https://doi.org/10.1016/j.carbpol.2017.07.064

Malagurski I, Lević S, Nešić A, Mitrić M, Pavlović VB, Dimitrijević-Branković S. Mineralized agar-based nanocomposite films: Potential food packaging materials with antimicrobial properties. in Carbohydrate Polymers. 2017;175:55-62.
doi:10.1016/j.carbpol.2017.07.064 .

Malagurski, Ivana, Lević, Steva, Nešić, Aleksandra, Mitrić, Miodrag, Pavlović, Vladimir B., Dimitrijević-Branković, Suzana, "Mineralized agar-based nanocomposite films: Potential food packaging materials with antimicrobial properties" in Carbohydrate Polymers, 175 (2017):55-62,
https://doi.org/10.1016/j.carbpol.2017.07.064 . .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Ružić, Jovana
AU  - Gordić, Milan V.
AU  - Ostojić, Sanja
AU  - Micić, Darko
AU  - Onjia, Antonije
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3696
AB  - In this work, the new biodegradable blend films composed of natural polymer pectin and synthetic polymer polyvinylpyrrolidone were obtained through casting process. The concentration of glycerol in all formulations was constant (2% v/v), while the amount of polyvinylpyrrolidone varied from 20 to 60% by mass of pectin. The molecular interactions between two components were elucidated by FTIR-ATR spectroscopy, while functional properties of these films were carried out by determination of puncture resistance, tensile strength, thermal stability, water vapor barrier, wettability and printability. The blending of pectin with PVP led to an improvement of mechanical resistance, barrier properties and hydrophobicity of these films for 57%, 58 and 24%, respectively, remaining adequate thermal stability. Since pectin and PVP are nontoxic, food-grade and biodegradable materials, this research present an ecosustainable approach to provide films with satisfied physical properties for use as packaging material of non-food products, such as water-treatment products (detergents, biocides, agrochemical compounds).
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Pectin-polyvinylpyrrolidone films: A sustainable approach to the development of biobased packaging materials
EP  - 61
SP  - 56
VL  - 110
DO  - 10.1016/j.compositesb.2016.11.016
ER  - 

@article{
author = "Nešić, Aleksandra and Ružić, Jovana and Gordić, Milan V. and Ostojić, Sanja and Micić, Darko and Onjia, Antonije",
year = "2017",
abstract = "In this work, the new biodegradable blend films composed of natural polymer pectin and synthetic polymer polyvinylpyrrolidone were obtained through casting process. The concentration of glycerol in all formulations was constant (2% v/v), while the amount of polyvinylpyrrolidone varied from 20 to 60% by mass of pectin. The molecular interactions between two components were elucidated by FTIR-ATR spectroscopy, while functional properties of these films were carried out by determination of puncture resistance, tensile strength, thermal stability, water vapor barrier, wettability and printability. The blending of pectin with PVP led to an improvement of mechanical resistance, barrier properties and hydrophobicity of these films for 57%, 58 and 24%, respectively, remaining adequate thermal stability. Since pectin and PVP are nontoxic, food-grade and biodegradable materials, this research present an ecosustainable approach to provide films with satisfied physical properties for use as packaging material of non-food products, such as water-treatment products (detergents, biocides, agrochemical compounds).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Pectin-polyvinylpyrrolidone films: A sustainable approach to the development of biobased packaging materials",
pages = "61-56",
volume = "110",
doi = "10.1016/j.compositesb.2016.11.016"
}

Nešić, A., Ružić, J., Gordić, M. V., Ostojić, S., Micić, D.,& Onjia, A.. (2017). Pectin-polyvinylpyrrolidone films: A sustainable approach to the development of biobased packaging materials. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 110, 56-61.
https://doi.org/10.1016/j.compositesb.2016.11.016

Nešić A, Ružić J, Gordić MV, Ostojić S, Micić D, Onjia A. Pectin-polyvinylpyrrolidone films: A sustainable approach to the development of biobased packaging materials. in Composites Part B-Engineering. 2017;110:56-61.
doi:10.1016/j.compositesb.2016.11.016 .

Nešić, Aleksandra, Ružić, Jovana, Gordić, Milan V., Ostojić, Sanja, Micić, Darko, Onjia, Antonije, "Pectin-polyvinylpyrrolidone films: A sustainable approach to the development of biobased packaging materials" in Composites Part B-Engineering, 110 (2017):56-61,
https://doi.org/10.1016/j.compositesb.2016.11.016 . .

TY  - CONF
AU  - Miljković, Miona
AU  - Davidović, Slađana
AU  - Nešić, Aleksandra
AU  - Mihajlovski, Katarina
AU  - Dimitrijević, Suzana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6241
AB  - Dextransucrase (DS) is extracellular enzyme that catalyses the synthesis of dextran using
sucrose as a substrate, mainly produced by microorganisms belonging to the genera
Lactobacillus, Leuconostoc and Streptococcus. The aim of this study was usage of byproducts
from sugar refineries, molasses and sugar beet pulp (SBP) as a cheap substrate for
DS production. Fermentation process was performed by a natural isolate from water kefir
grain Leuconostoc mesenteroides T3. Molasses (ethanol Factory Alpis, Kovin, Serbia) with
addition of SBP (Fibrex 620, Nordic Sugar, Denmark) was used as fermentation media.
Molasses was diluted in distilledwater to a concentration of 2.5%. SBP was grounded in a
mortarand pestle to a particle size of 500–800μm. Four different treatments were
performed on the SBP before it was added into molasses: NaOH extraction, enzymatic
pretreatment (Viskozym), biological pretreatment (Paenibacillus chitinolyticus CKS1) and
combination of microwave and ultrasound treatment. The enzyme activity was determined
by measuring the concentration of released reducing sugars by DNS method at 540nm,
using fructose as a standard.Combination of microwave and ultrasound treatment as well
as biological pretreatment resulted in low DS activity. The best results of 1.45U/ml were
obtained with alkali and enzymatic pretreatments. Considering that enzymatic treatment
is environmental friendly it provides suitable method for SBP pretreatment for enhanced
DS production on molasses.
C3  - SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE
T1  - USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses
SP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6241
ER  - 

@conference{
author = "Miljković, Miona and Davidović, Slađana and Nešić, Aleksandra and Mihajlovski, Katarina and Dimitrijević, Suzana",
year = "2016",
abstract = "Dextransucrase (DS) is extracellular enzyme that catalyses the synthesis of dextran using
sucrose as a substrate, mainly produced by microorganisms belonging to the genera
Lactobacillus, Leuconostoc and Streptococcus. The aim of this study was usage of byproducts
from sugar refineries, molasses and sugar beet pulp (SBP) as a cheap substrate for
DS production. Fermentation process was performed by a natural isolate from water kefir
grain Leuconostoc mesenteroides T3. Molasses (ethanol Factory Alpis, Kovin, Serbia) with
addition of SBP (Fibrex 620, Nordic Sugar, Denmark) was used as fermentation media.
Molasses was diluted in distilledwater to a concentration of 2.5%. SBP was grounded in a
mortarand pestle to a particle size of 500–800μm. Four different treatments were
performed on the SBP before it was added into molasses: NaOH extraction, enzymatic
pretreatment (Viskozym), biological pretreatment (Paenibacillus chitinolyticus CKS1) and
combination of microwave and ultrasound treatment. The enzyme activity was determined
by measuring the concentration of released reducing sugars by DNS method at 540nm,
using fructose as a standard.Combination of microwave and ultrasound treatment as well
as biological pretreatment resulted in low DS activity. The best results of 1.45U/ml were
obtained with alkali and enzymatic pretreatments. Considering that enzymatic treatment
is environmental friendly it provides suitable method for SBP pretreatment for enhanced
DS production on molasses.",
journal = "SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE",
title = "USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6241"
}

Miljković, M., Davidović, S., Nešić, A., Mihajlovski, K.,& Dimitrijević, S.. (2016). USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses. in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE, 77.
https://hdl.handle.net/21.15107/rcub_technorep_6241

Miljković M, Davidović S, Nešić A, Mihajlovski K, Dimitrijević S. USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses. in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE. 2016;:77.
https://hdl.handle.net/21.15107/rcub_technorep_6241 .

Miljković, Miona, Davidović, Slađana, Nešić, Aleksandra, Mihajlovski, Katarina, Dimitrijević, Suzana, "USAGE OF BY-PRODUCTS FROM SUGAR INDUSTRY AS A CHEAP SUBSTRATE FOR DEXTRANSUCRASE PRODUCTION Different treatments of sugar beet pulp for enhanced dextransucrase production on molasses" in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE (2016):77,
https://hdl.handle.net/21.15107/rcub_technorep_6241 .

TY  - CONF
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Radovanović, Neda
AU  - Lazic, Vesna
AU  - Nešić, Aleksandra
AU  - Dimitrijević, Suzana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6182
AB  - Antimicrobial potential of a film made from dextran incorporated with silver nanoparticles (Ag NPs) against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus was investigated. First, the colloidal Ag NPs solutions of three different concentrations: 0.5, 1.0 and 2.0 mmol L-1 were made. The next step was preparation of dextran/nanosilver films. Disc diffusion method on agar and quantitative test in liquid medium were performed to evaluate the antibacterial activity of prepared composites. The results obtained in this work demonstrated that dextran-based film incorporated with Ag NPs could be used as a coating to prevent contaminations of working surfaces.
C3  - NANO FOR HEALTH
T1  - Antimicrobial properties of dextran-based coatings incorporated with silver nanoparticles
SP  - 137
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6182
ER  - 

@conference{
author = "Davidović, Slađana and Miljković, Miona and Radovanović, Neda and Lazic, Vesna and Nešić, Aleksandra and Dimitrijević, Suzana",
year = "2016",
abstract = "Antimicrobial potential of a film made from dextran incorporated with silver nanoparticles (Ag NPs) against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus was investigated. First, the colloidal Ag NPs solutions of three different concentrations: 0.5, 1.0 and 2.0 mmol L-1 were made. The next step was preparation of dextran/nanosilver films. Disc diffusion method on agar and quantitative test in liquid medium were performed to evaluate the antibacterial activity of prepared composites. The results obtained in this work demonstrated that dextran-based film incorporated with Ag NPs could be used as a coating to prevent contaminations of working surfaces.",
journal = "NANO FOR HEALTH",
title = "Antimicrobial properties of dextran-based coatings incorporated with silver nanoparticles",
pages = "137",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6182"
}

Davidović, S., Miljković, M., Radovanović, N., Lazic, V., Nešić, A.,& Dimitrijević, S.. (2016). Antimicrobial properties of dextran-based coatings incorporated with silver nanoparticles. in NANO FOR HEALTH, 137.
https://hdl.handle.net/21.15107/rcub_technorep_6182

Davidović S, Miljković M, Radovanović N, Lazic V, Nešić A, Dimitrijević S. Antimicrobial properties of dextran-based coatings incorporated with silver nanoparticles. in NANO FOR HEALTH. 2016;:137.
https://hdl.handle.net/21.15107/rcub_technorep_6182 .

Davidović, Slađana, Miljković, Miona, Radovanović, Neda, Lazic, Vesna, Nešić, Aleksandra, Dimitrijević, Suzana, "Antimicrobial properties of dextran-based coatings incorporated with silver nanoparticles" in NANO FOR HEALTH (2016):137,
https://hdl.handle.net/21.15107/rcub_technorep_6182 .

TY  - CONF
AU  - Davidović, Slađana
AU  - Miljković, Miona
AU  - Nešić, Aleksandra
AU  - Fateyeyeva, Kateryna
AU  - Dimitrijević, Suzana
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6240
AB  - The aim of this work is the utilization of sugar industry waste: sugar beet pulp and
molasses, as a new approach for manufacture of raw chemicals that can be further
converted into valuable products for food packaging industry. Dextransucrase is one of the
main enzymes which catalyze the transfer of D-glucopyranosyl residues from sucrose to
biopolymer dextran. New approach proposed the use of sugar beet pulp as a supporter for
cells immobilization and molasses as the source of nutrient for production of
dextransucrase by natural isolate from water kefir grain. Afterwards, the dextransucrase
was purified and incubated in 5% sucrose/sodium acetate buffer solution (pH 5.4) at 30◦C
for 48 h, in order to produce dextran. Dextran obtained by this procedure was used for
preparation of edible biobased coating to prolong shelf-life of tomato. In order to improve
mechanical properties of these coatings, poly(glycerol) was added. The dextran coatings
were characterized by mechanical and thermal properties. Moreover, the tomato was
coated with dextran film and evaluated periodically for various quality parameters. The
tensile strength and elongation at break of dextran coatings was 1.62 MPa and 230%,
respectively. Dextran coatings showed adequate thermal stability and could be safely used
for applications up to 200oC. The coated-tomato reduced texture softening, weight loss
and acid production compared with the uncoated tomato, which implied the prolongation
of tomato shelf-life.
C3  - SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE
T1  - FROM WASTE TO NEW BIOBASED EDIBLE COATINGS An ecological approach to improve the safety and shelf-life of foods
SP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_technorep_6240
ER  - 

@conference{
author = "Davidović, Slađana and Miljković, Miona and Nešić, Aleksandra and Fateyeyeva, Kateryna and Dimitrijević, Suzana",
year = "2016",
abstract = "The aim of this work is the utilization of sugar industry waste: sugar beet pulp and
molasses, as a new approach for manufacture of raw chemicals that can be further
converted into valuable products for food packaging industry. Dextransucrase is one of the
main enzymes which catalyze the transfer of D-glucopyranosyl residues from sucrose to
biopolymer dextran. New approach proposed the use of sugar beet pulp as a supporter for
cells immobilization and molasses as the source of nutrient for production of
dextransucrase by natural isolate from water kefir grain. Afterwards, the dextransucrase
was purified and incubated in 5% sucrose/sodium acetate buffer solution (pH 5.4) at 30◦C
for 48 h, in order to produce dextran. Dextran obtained by this procedure was used for
preparation of edible biobased coating to prolong shelf-life of tomato. In order to improve
mechanical properties of these coatings, poly(glycerol) was added. The dextran coatings
were characterized by mechanical and thermal properties. Moreover, the tomato was
coated with dextran film and evaluated periodically for various quality parameters. The
tensile strength and elongation at break of dextran coatings was 1.62 MPa and 230%,
respectively. Dextran coatings showed adequate thermal stability and could be safely used
for applications up to 200oC. The coated-tomato reduced texture softening, weight loss
and acid production compared with the uncoated tomato, which implied the prolongation
of tomato shelf-life.",
journal = "SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE",
title = "FROM WASTE TO NEW BIOBASED EDIBLE COATINGS An ecological approach to improve the safety and shelf-life of foods",
pages = "76",
url = "https://hdl.handle.net/21.15107/rcub_technorep_6240"
}

Davidović, S., Miljković, M., Nešić, A., Fateyeyeva, K.,& Dimitrijević, S.. (2016). FROM WASTE TO NEW BIOBASED EDIBLE COATINGS An ecological approach to improve the safety and shelf-life of foods. in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE, 76.
https://hdl.handle.net/21.15107/rcub_technorep_6240

Davidović S, Miljković M, Nešić A, Fateyeyeva K, Dimitrijević S. FROM WASTE TO NEW BIOBASED EDIBLE COATINGS An ecological approach to improve the safety and shelf-life of foods. in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE. 2016;:76.
https://hdl.handle.net/21.15107/rcub_technorep_6240 .

Davidović, Slađana, Miljković, Miona, Nešić, Aleksandra, Fateyeyeva, Kateryna, Dimitrijević, Suzana, "FROM WASTE TO NEW BIOBASED EDIBLE COATINGS An ecological approach to improve the safety and shelf-life of foods" in SOLID URBAN WASTE MANAGEMENT XXI IUPAC CHEMRAWN CONFERENCE (2016):76,
https://hdl.handle.net/21.15107/rcub_technorep_6240 .

TY  - JOUR
AU  - Nešić, Aleksandra
AU  - Panić, Vesna
AU  - Ostojić, Sanja
AU  - Micić, Darko
AU  - Pajić-Lijaković, Ivana
AU  - Onjia, Antonije
AU  - Veličković, Sava
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3415
AB  - This article described the synthesis and characterization of new copolymer hydrogels containing two hydrophilic units-methacrylic acid (MAA) and 2-Acrylamido-2-methylpropane sulfonic acid (AMPS). The resulting hydrogels were characterized by various techniques: FTIR, Elemental analysis, SEM, Dynamic Molecular simulation, Dynamic-Mechanical analysis and DSC in order to confirm the structure of hydrogels and to predict the best ratio composition with enhanced physical chemical properties. The swelling behavior in water was studied as a function of ratio of monomers and their concentration in medium. An increase in AMPS content led to expansion of network and increase in swelling degree capacity in water. An increase in AMPS content did not significantly influence the glass transition temperature of copolymers, indicated that the physical properties of initial components were preserved. The equal amount of monomers contributed to the highest strength of hydrogels. Meanwhile, the introduction of AMPS to the system was an effective method for improving the performances of the poly(methacrylic acid)- based hydrogels.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Chemistry and Physics
T1  - Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid
EP  - 163
SP  - 156
VL  - 174
DO  - 10.1016/j.matchemphys.2016.02.063
ER  - 

@article{
author = "Nešić, Aleksandra and Panić, Vesna and Ostojić, Sanja and Micić, Darko and Pajić-Lijaković, Ivana and Onjia, Antonije and Veličković, Sava",
year = "2016",
abstract = "This article described the synthesis and characterization of new copolymer hydrogels containing two hydrophilic units-methacrylic acid (MAA) and 2-Acrylamido-2-methylpropane sulfonic acid (AMPS). The resulting hydrogels were characterized by various techniques: FTIR, Elemental analysis, SEM, Dynamic Molecular simulation, Dynamic-Mechanical analysis and DSC in order to confirm the structure of hydrogels and to predict the best ratio composition with enhanced physical chemical properties. The swelling behavior in water was studied as a function of ratio of monomers and their concentration in medium. An increase in AMPS content led to expansion of network and increase in swelling degree capacity in water. An increase in AMPS content did not significantly influence the glass transition temperature of copolymers, indicated that the physical properties of initial components were preserved. The equal amount of monomers contributed to the highest strength of hydrogels. Meanwhile, the introduction of AMPS to the system was an effective method for improving the performances of the poly(methacrylic acid)- based hydrogels.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid",
pages = "163-156",
volume = "174",
doi = "10.1016/j.matchemphys.2016.02.063"
}

Nešić, A., Panić, V., Ostojić, S., Micić, D., Pajić-Lijaković, I., Onjia, A.,& Veličković, S.. (2016). Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 174, 156-163.
https://doi.org/10.1016/j.matchemphys.2016.02.063

Nešić A, Panić V, Ostojić S, Micić D, Pajić-Lijaković I, Onjia A, Veličković S. Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid. in Materials Chemistry and Physics. 2016;174:156-163.
doi:10.1016/j.matchemphys.2016.02.063 .

Nešić, Aleksandra, Panić, Vesna, Ostojić, Sanja, Micić, Darko, Pajić-Lijaković, Ivana, Onjia, Antonije, Veličković, Sava, "Physical-chemical behavior of novel copolymers composed of methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid" in Materials Chemistry and Physics, 174 (2016):156-163,
https://doi.org/10.1016/j.matchemphys.2016.02.063 . .