TY  - JOUR
AU  - Radosavljević, Milos
AU  - Lević, Steva
AU  - Belović, Miona
AU  - Pejin, Jelena
AU  - Djukić-Vuković, Aleksandra
AU  - Mojović, Ljiljana
AU  - Nedović, Viktor
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5353
AB  - Immobilization of Lactobacillus rhamnosus ATCC7469 in poly(vinyl alcohol)/calcium alginate (PVA/Ca-alginate) matrix using "freezing-thawing" technique for application in lactic acid (LA) fermentation was studied in this paper. PVA/Ca-alginate beads were made from sterile and non-sterile PVA and sodium alginate solutions. According to mechanical properties, the PVA/Ca-alginate beads expressed a strong elastic character. Obtained PVA/Ca-alginate beads were further applied in batch and repeated batch LA fermentations. Regarding cell viability, L. rhamnosus cells survived well rather sharp immobilization procedure and significant cell proliferation was observed in further fermentation studies achieving high cell viability (up to 10.7 log CFU g(-1)) in sterile beads. In batch LA fermentation, the immobilized biocatalyst was superior to free cell fermentation system (by 37.1%), while the highest LA yield and volumetric productivity of 97.6% and 0.8 g L-1 h(-1), respectively, were attained in repeated batch fermentation. During seven consecutive batch fermentations, the biocatalyst showed high mechanical and operational stability reaching an overall productivity of 0.78 g L-1 h(-1). This study suggested that the "freezing-thawing" technique can be successfully used for immobilization of L. rhamnosus in PVA/Ca-alginate matrix without loss of either viability or LA fermentation capability.
PB  - Springer, New York
T2  - Bioprocess and Biosystems Engineering
T1  - Immobilization of Lactobacillus rhamnosus in polyvinyl alcohol/calcium alginate matrix for production of lactic acid
EP  - 322
IS  - 2
SP  - 315
VL  - 43
DO  - 10.1007/s00449-019-02228-0
ER  - 

@article{
author = "Radosavljević, Milos and Lević, Steva and Belović, Miona and Pejin, Jelena and Djukić-Vuković, Aleksandra and Mojović, Ljiljana and Nedović, Viktor",
year = "2020",
abstract = "Immobilization of Lactobacillus rhamnosus ATCC7469 in poly(vinyl alcohol)/calcium alginate (PVA/Ca-alginate) matrix using "freezing-thawing" technique for application in lactic acid (LA) fermentation was studied in this paper. PVA/Ca-alginate beads were made from sterile and non-sterile PVA and sodium alginate solutions. According to mechanical properties, the PVA/Ca-alginate beads expressed a strong elastic character. Obtained PVA/Ca-alginate beads were further applied in batch and repeated batch LA fermentations. Regarding cell viability, L. rhamnosus cells survived well rather sharp immobilization procedure and significant cell proliferation was observed in further fermentation studies achieving high cell viability (up to 10.7 log CFU g(-1)) in sterile beads. In batch LA fermentation, the immobilized biocatalyst was superior to free cell fermentation system (by 37.1%), while the highest LA yield and volumetric productivity of 97.6% and 0.8 g L-1 h(-1), respectively, were attained in repeated batch fermentation. During seven consecutive batch fermentations, the biocatalyst showed high mechanical and operational stability reaching an overall productivity of 0.78 g L-1 h(-1). This study suggested that the "freezing-thawing" technique can be successfully used for immobilization of L. rhamnosus in PVA/Ca-alginate matrix without loss of either viability or LA fermentation capability.",
publisher = "Springer, New York",
journal = "Bioprocess and Biosystems Engineering",
title = "Immobilization of Lactobacillus rhamnosus in polyvinyl alcohol/calcium alginate matrix for production of lactic acid",
pages = "322-315",
number = "2",
volume = "43",
doi = "10.1007/s00449-019-02228-0"
}

Radosavljević, M., Lević, S., Belović, M., Pejin, J., Djukić-Vuković, A., Mojović, L.,& Nedović, V.. (2020). Immobilization of Lactobacillus rhamnosus in polyvinyl alcohol/calcium alginate matrix for production of lactic acid. in Bioprocess and Biosystems Engineering
Springer, New York., 43(2), 315-322.
https://doi.org/10.1007/s00449-019-02228-0

Radosavljević M, Lević S, Belović M, Pejin J, Djukić-Vuković A, Mojović L, Nedović V. Immobilization of Lactobacillus rhamnosus in polyvinyl alcohol/calcium alginate matrix for production of lactic acid. in Bioprocess and Biosystems Engineering. 2020;43(2):315-322.
doi:10.1007/s00449-019-02228-0 .

Radosavljević, Milos, Lević, Steva, Belović, Miona, Pejin, Jelena, Djukić-Vuković, Aleksandra, Mojović, Ljiljana, Nedović, Viktor, "Immobilization of Lactobacillus rhamnosus in polyvinyl alcohol/calcium alginate matrix for production of lactic acid" in Bioprocess and Biosystems Engineering, 43, no. 2 (2020):315-322,
https://doi.org/10.1007/s00449-019-02228-0 . .

TY  - JOUR
AU  - Djekić, Ilija
AU  - Sanjuan, Neus
AU  - Clemente, Gabriela
AU  - Jambrak, Anet Rezek
AU  - Djukić-Vuković, Aleksandra
AU  - Vrabić-Brodnjak, Urgka
AU  - Pop, Eugen
AU  - Thomopoulos, Rallou
AU  - Tonda, Alberto
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4742
AB  - Diversity of food systems and their interaction with the environment has become a research topic for many years. Scientists use various models to explain environmental issues of food systems. This paper gives an overview of main streams in analyzing this topic. A literature review was performed by analyzing published scientific papers on environmental impacts in the food chain. The selection criteria were focused on different environmental approaches applied in the food chain and on the perspectives of future research. This review shows that on the one side there are generic environmental models developed by environmental scientists and as such applied on food. On the other side, there are models developed by food scientists in order to analyze food-environmental interactions. The environmental research in food industry can be categorized as product, process or system oriented. This study confirmed that the focus of product based approach is mainly performed through life-cycle assessments. The process based approach focuses on food processes such as heat transfer, cleaning and sanitation and various approaches in food waste management. Environmental systems in the food chain were the least investigated stream analyzing levels of environmental practices in place. Future research perspectives are the emerging challenges related to environmental impacts of novel food processing technologies, innovative food packaging and changes in diets and food consumption in connection with climate and environmental changes.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Review on environmental models in the food chain - Current status and future perspectives
EP  - 1025
SP  - 1012
VL  - 176
DO  - 10.1016/j.jclepro.2017.11.241
ER  - 

@article{
author = "Djekić, Ilija and Sanjuan, Neus and Clemente, Gabriela and Jambrak, Anet Rezek and Djukić-Vuković, Aleksandra and Vrabić-Brodnjak, Urgka and Pop, Eugen and Thomopoulos, Rallou and Tonda, Alberto",
year = "2018",
abstract = "Diversity of food systems and their interaction with the environment has become a research topic for many years. Scientists use various models to explain environmental issues of food systems. This paper gives an overview of main streams in analyzing this topic. A literature review was performed by analyzing published scientific papers on environmental impacts in the food chain. The selection criteria were focused on different environmental approaches applied in the food chain and on the perspectives of future research. This review shows that on the one side there are generic environmental models developed by environmental scientists and as such applied on food. On the other side, there are models developed by food scientists in order to analyze food-environmental interactions. The environmental research in food industry can be categorized as product, process or system oriented. This study confirmed that the focus of product based approach is mainly performed through life-cycle assessments. The process based approach focuses on food processes such as heat transfer, cleaning and sanitation and various approaches in food waste management. Environmental systems in the food chain were the least investigated stream analyzing levels of environmental practices in place. Future research perspectives are the emerging challenges related to environmental impacts of novel food processing technologies, innovative food packaging and changes in diets and food consumption in connection with climate and environmental changes.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Review on environmental models in the food chain - Current status and future perspectives",
pages = "1025-1012",
volume = "176",
doi = "10.1016/j.jclepro.2017.11.241"
}

Djekić, I., Sanjuan, N., Clemente, G., Jambrak, A. R., Djukić-Vuković, A., Vrabić-Brodnjak, U., Pop, E., Thomopoulos, R.,& Tonda, A.. (2018). Review on environmental models in the food chain - Current status and future perspectives. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 176, 1012-1025.
https://doi.org/10.1016/j.jclepro.2017.11.241

Djekić I, Sanjuan N, Clemente G, Jambrak AR, Djukić-Vuković A, Vrabić-Brodnjak U, Pop E, Thomopoulos R, Tonda A. Review on environmental models in the food chain - Current status and future perspectives. in Journal of Cleaner Production. 2018;176:1012-1025.
doi:10.1016/j.jclepro.2017.11.241 .

Djekić, Ilija, Sanjuan, Neus, Clemente, Gabriela, Jambrak, Anet Rezek, Djukić-Vuković, Aleksandra, Vrabić-Brodnjak, Urgka, Pop, Eugen, Thomopoulos, Rallou, Tonda, Alberto, "Review on environmental models in the food chain - Current status and future perspectives" in Journal of Cleaner Production, 176 (2018):1012-1025,
https://doi.org/10.1016/j.jclepro.2017.11.241 . .