TY  - JOUR
AU  - Milivojević, Milan
AU  - Popović, Aleksandra
AU  - Pajić-Lijaković, Ivana
AU  - Šoštarić, Ivan
AU  - Kolašinac, Stefan
AU  - Stevanović, Zora Dajić
PY  - 2023
UR  - https://www.mdpi.com/2310-2861/9/8/620
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6422
AB  - Sodium alginate is one of the most interesting and the most investigated and applied biopolymers due to its advantageous properties. Among them, easy, simple, mild, rapid, non-toxic gelation by divalent cations is the most important. In addition, it is abundant, low-cost, eco-friendly, bio-compatible, bio-adhesive, biodegradable, stable, etc. All those properties were systematically considered within this review. Carotenoids are functional components in the human diet with plenty of health benefits. However, their sensitivity to environmental and process stresses, chemical instability, easy oxidation, low water solubility, and bioavailability limit their food and pharmaceutical applications. Encapsulation may help in overcoming these limitations and within this review, the role of alginate-based encapsulation systems in improving the stability and bioavailability of carotenoids is explored. It may be concluded that all alginate-based systems increase carotenoid stability, but only those of micro- and nano-size, as well as emulsion-based, may improve their low bioaccessibility. In addition, the incorporation of other biopolymers may further improve encapsulation system properties. Furthermore, the main techniques for evaluating the encapsulation are briefly considered. This review critically and profoundly explains the role of alginates in improving the encapsulation process of carotenoids, suggesting the best alternatives for those systems. Moreover, it provides a comprehensive cover of recent advances in this field.
T2  - Gels
T2  - Gels
T1  - Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications
IS  - 8
SP  - 620
VL  - 9
DO  - 10.3390/gels9080620
ER  - 

@article{
author = "Milivojević, Milan and Popović, Aleksandra and Pajić-Lijaković, Ivana and Šoštarić, Ivan and Kolašinac, Stefan and Stevanović, Zora Dajić",
year = "2023",
abstract = "Sodium alginate is one of the most interesting and the most investigated and applied biopolymers due to its advantageous properties. Among them, easy, simple, mild, rapid, non-toxic gelation by divalent cations is the most important. In addition, it is abundant, low-cost, eco-friendly, bio-compatible, bio-adhesive, biodegradable, stable, etc. All those properties were systematically considered within this review. Carotenoids are functional components in the human diet with plenty of health benefits. However, their sensitivity to environmental and process stresses, chemical instability, easy oxidation, low water solubility, and bioavailability limit their food and pharmaceutical applications. Encapsulation may help in overcoming these limitations and within this review, the role of alginate-based encapsulation systems in improving the stability and bioavailability of carotenoids is explored. It may be concluded that all alginate-based systems increase carotenoid stability, but only those of micro- and nano-size, as well as emulsion-based, may improve their low bioaccessibility. In addition, the incorporation of other biopolymers may further improve encapsulation system properties. Furthermore, the main techniques for evaluating the encapsulation are briefly considered. This review critically and profoundly explains the role of alginates in improving the encapsulation process of carotenoids, suggesting the best alternatives for those systems. Moreover, it provides a comprehensive cover of recent advances in this field.",
journal = "Gels, Gels",
title = "Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications",
number = "8",
pages = "620",
volume = "9",
doi = "10.3390/gels9080620"
}

Milivojević, M., Popović, A., Pajić-Lijaković, I., Šoštarić, I., Kolašinac, S.,& Stevanović, Z. D.. (2023). Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications. in Gels, 9(8), 620.
https://doi.org/10.3390/gels9080620

Milivojević M, Popović A, Pajić-Lijaković I, Šoštarić I, Kolašinac S, Stevanović ZD. Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications. in Gels. 2023;9(8):620.
doi:10.3390/gels9080620 .

Milivojević, Milan, Popović, Aleksandra, Pajić-Lijaković, Ivana, Šoštarić, Ivan, Kolašinac, Stefan, Stevanović, Zora Dajić, "Alginate Gel-Based Carriers for Encapsulation of Carotenoids: On Challenges and Applications" in Gels, 9, no. 8 (2023):620,
https://doi.org/10.3390/gels9080620 . .

TY  - JOUR
AU  - Pajić-Lijaković, Ivana
AU  - Lević, Steva
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3849
AB  - Irreversible nature of matrix structural changes around the immobilized cell aggregates caused by cell expansion is considered within the Ca-alginate microbeads. It is related to various effects: (1) cell-bulk surface effects (cell-polymer mechanical interactions) and cell surface-polymer surface effects (cell-polymer electrostatic interactions) at the bio-interface, (2) polymer-bulk volume effects (polymer-polymer mechanical and electrostatic interactions) within the perturbed boundary layers around the cell aggregates, (3) cumulative surface and volume effects within the parts of the microbead, and (4) macroscopic effects within the microbead as a whole based on multi scale modeling approaches. All modeling levels are discussed at two time scales i.e. long time scale (cell growth time) and short time scale (cell rearrangement time). Matrix structural changes results in the resistance stress generation which have the feedback impact on: (1) single and collective cell migrations, (2) cell deformation and orientation, (3) decrease of cell-to-cell separation distances, and (4) cell growth. Herein, an attempt is made to discuss and connect various multi scale modeling approaches on a range of time and space scales which have been proposed in the literature in order to shed further light to this complex course-consequence phenomenon which induces the anomalous nature of energy dissipation during the structural changes of cell aggregates and matrix quantified by the damping coefficients (the orders of the fractional derivatives). Deeper insight into the matrix partial disintegration within the boundary layers is useful for understanding and minimizing the polymer matrix resistance stress generation within the interface and on that base optimizing cell growth.
PB  - Elsevier, Amsterdam
T2  - Colloids and Surfaces B-Biointerfaces
T1  - Biointerface dynamics - Multi scale modeling considerations
EP  - 245
SP  - 236
VL  - 132
DO  - 10.1016/j.colsurfb.2015.05.013
ER  - 

@article{
author = "Pajić-Lijaković, Ivana and Lević, Steva and Nedović, Viktor and Bugarski, Branko",
year = "2015",
abstract = "Irreversible nature of matrix structural changes around the immobilized cell aggregates caused by cell expansion is considered within the Ca-alginate microbeads. It is related to various effects: (1) cell-bulk surface effects (cell-polymer mechanical interactions) and cell surface-polymer surface effects (cell-polymer electrostatic interactions) at the bio-interface, (2) polymer-bulk volume effects (polymer-polymer mechanical and electrostatic interactions) within the perturbed boundary layers around the cell aggregates, (3) cumulative surface and volume effects within the parts of the microbead, and (4) macroscopic effects within the microbead as a whole based on multi scale modeling approaches. All modeling levels are discussed at two time scales i.e. long time scale (cell growth time) and short time scale (cell rearrangement time). Matrix structural changes results in the resistance stress generation which have the feedback impact on: (1) single and collective cell migrations, (2) cell deformation and orientation, (3) decrease of cell-to-cell separation distances, and (4) cell growth. Herein, an attempt is made to discuss and connect various multi scale modeling approaches on a range of time and space scales which have been proposed in the literature in order to shed further light to this complex course-consequence phenomenon which induces the anomalous nature of energy dissipation during the structural changes of cell aggregates and matrix quantified by the damping coefficients (the orders of the fractional derivatives). Deeper insight into the matrix partial disintegration within the boundary layers is useful for understanding and minimizing the polymer matrix resistance stress generation within the interface and on that base optimizing cell growth.",
publisher = "Elsevier, Amsterdam",
journal = "Colloids and Surfaces B-Biointerfaces",
title = "Biointerface dynamics - Multi scale modeling considerations",
pages = "245-236",
volume = "132",
doi = "10.1016/j.colsurfb.2015.05.013"
}

Pajić-Lijaković, I., Lević, S., Nedović, V.,& Bugarski, B.. (2015). Biointerface dynamics - Multi scale modeling considerations. in Colloids and Surfaces B-Biointerfaces
Elsevier, Amsterdam., 132, 236-245.
https://doi.org/10.1016/j.colsurfb.2015.05.013

Pajić-Lijaković I, Lević S, Nedović V, Bugarski B. Biointerface dynamics - Multi scale modeling considerations. in Colloids and Surfaces B-Biointerfaces. 2015;132:236-245.
doi:10.1016/j.colsurfb.2015.05.013 .

Pajić-Lijaković, Ivana, Lević, Steva, Nedović, Viktor, Bugarski, Branko, "Biointerface dynamics - Multi scale modeling considerations" in Colloids and Surfaces B-Biointerfaces, 132 (2015):236-245,
https://doi.org/10.1016/j.colsurfb.2015.05.013 . .

TY  - JOUR
AU  - Pajić-Lijaković, I.
AU  - Plavšić, M.
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2007
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1464
AB  - A phase-field model was formulated to describe yeast cell growth within the Ca-alginate microbead during air-lift bioreactor cultivation. Model development was based on experimentally obtained data for intra-bead yeast cell volume fraction profile after reaching the equilibrium state, as well as, total yeast cell volume fraction per microbead and microbead volume as functions of time. Relatively uniform cell concentration in the microbead, experimentally obtained, indicated microenvironmental restriction effects due to deformation and disintegration of previously swollen alginate hydrogel, while internal nutrient diffusion limitation could be neglected in the case of alginate microbeads used in this study. Microbead with growing yeast cells is treated as two phase system. One phase represents the cell agglomerates, while the other is the alginate hydrogel matrices. The interactions between phases are modeled using the Langevin class, non-conservative phase-field model. Such class of models is suitable for considering the growth of small domains of one phase as nucleation. Besides giving useful insights into the dynamics of restrictive cell growth within the Ca-alginate microbead, the model can be used as a tool to design/optimize the performance of microbead and studying the microenvironmental restrictive mechanism action on the cell growth. .
AB  - Fazni model je formulisan da opiše rast ćelija kvasaca unutar Ca-alginatnih nosača za vreme perioda kultivacije u air-lift bioreaktoru. Model je razvijen na osnovu prikupljenih eksperimentalnih podataka za profil yapreminskog udela ćelija unutar nosača nakon postizanja stacionarnog stanja, za yapreminski udeo ćelija po nosaču u funkciji vremena i za promenu zapremine nosača u toku vremena. Relativno uniformna koncentracija ćelija, eksperimentalno primećena, unutar Ca-alginatnih nosača ukazuje na postojanje restriktivnih efekata sredine koji limitiraju rast ćelija, kao što su deformisanje i razgradnja matrice nosača. Otpori difuziji nutrenata kroz nosač se mogu zanemariti. Mironosač sa imobilisanim ćelijama koje rastu se može tretirati kao dvo-fazni sistem. Jednu fazu pretstavljaju aglomerati ćelija, a drugu matrica Ca-alginatnog hidrogela. Interakcije izmedju faza su modelovane koristeći Lanževinovu klasu ne konzervativnih faznih modela. Ova klasa modela je pogodna za razmatranje rasta malih domena jedne faze u toku procesa nukleacije. S obziromda daje koristan uvid u dinamiku restriktivnog rasta ćelija unutar Ca-alginatnih nosača, ovaj model može biti korišćen kao sredstvo za dizajniranje/optimizaciju osobina mikronosača i proučavanje mehanizama restriktivnog dejstva mikrookoline ćelija unutar nosača na dinamiku rasta ćelija. .
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Zbornik radova Tehnološkog fakulteta, Leskovac
T1  - Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead
T1  - Fazno modelovanje dinamike rasta imobilisanih ćelija kvasca u Ca-alginatnim nosačima
EP  - 63
IS  - 16
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1464
ER  - 

@article{
author = "Pajić-Lijaković, I. and Plavšić, M. and Nedović, Viktor and Bugarski, Branko",
year = "2007",
abstract = "A phase-field model was formulated to describe yeast cell growth within the Ca-alginate microbead during air-lift bioreactor cultivation. Model development was based on experimentally obtained data for intra-bead yeast cell volume fraction profile after reaching the equilibrium state, as well as, total yeast cell volume fraction per microbead and microbead volume as functions of time. Relatively uniform cell concentration in the microbead, experimentally obtained, indicated microenvironmental restriction effects due to deformation and disintegration of previously swollen alginate hydrogel, while internal nutrient diffusion limitation could be neglected in the case of alginate microbeads used in this study. Microbead with growing yeast cells is treated as two phase system. One phase represents the cell agglomerates, while the other is the alginate hydrogel matrices. The interactions between phases are modeled using the Langevin class, non-conservative phase-field model. Such class of models is suitable for considering the growth of small domains of one phase as nucleation. Besides giving useful insights into the dynamics of restrictive cell growth within the Ca-alginate microbead, the model can be used as a tool to design/optimize the performance of microbead and studying the microenvironmental restrictive mechanism action on the cell growth. ., Fazni model je formulisan da opiše rast ćelija kvasaca unutar Ca-alginatnih nosača za vreme perioda kultivacije u air-lift bioreaktoru. Model je razvijen na osnovu prikupljenih eksperimentalnih podataka za profil yapreminskog udela ćelija unutar nosača nakon postizanja stacionarnog stanja, za yapreminski udeo ćelija po nosaču u funkciji vremena i za promenu zapremine nosača u toku vremena. Relativno uniformna koncentracija ćelija, eksperimentalno primećena, unutar Ca-alginatnih nosača ukazuje na postojanje restriktivnih efekata sredine koji limitiraju rast ćelija, kao što su deformisanje i razgradnja matrice nosača. Otpori difuziji nutrenata kroz nosač se mogu zanemariti. Mironosač sa imobilisanim ćelijama koje rastu se može tretirati kao dvo-fazni sistem. Jednu fazu pretstavljaju aglomerati ćelija, a drugu matrica Ca-alginatnog hidrogela. Interakcije izmedju faza su modelovane koristeći Lanževinovu klasu ne konzervativnih faznih modela. Ova klasa modela je pogodna za razmatranje rasta malih domena jedne faze u toku procesa nukleacije. S obziromda daje koristan uvid u dinamiku restriktivnog rasta ćelija unutar Ca-alginatnih nosača, ovaj model može biti korišćen kao sredstvo za dizajniranje/optimizaciju osobina mikronosača i proučavanje mehanizama restriktivnog dejstva mikrookoline ćelija unutar nosača na dinamiku rasta ćelija. .",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Zbornik radova Tehnološkog fakulteta, Leskovac",
title = "Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead, Fazno modelovanje dinamike rasta imobilisanih ćelija kvasca u Ca-alginatnim nosačima",
pages = "63-57",
number = "16",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1464"
}

Pajić-Lijaković, I., Plavšić, M., Nedović, V.,& Bugarski, B.. (2007). Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead. in Zbornik radova Tehnološkog fakulteta, Leskovac
Univerzitet u Nišu - Tehnološki fakultet, Leskovac.(16), 57-63.
https://hdl.handle.net/21.15107/rcub_agrospace_1464

Pajić-Lijaković I, Plavšić M, Nedović V, Bugarski B. Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead. in Zbornik radova Tehnološkog fakulteta, Leskovac. 2007;(16):57-63.
https://hdl.handle.net/21.15107/rcub_agrospace_1464 .

Pajić-Lijaković, I., Plavšić, M., Nedović, Viktor, Bugarski, Branko, "Phase-field modeling of dynamics of immobilized yeast cell growth in Ca-alginate microbead" in Zbornik radova Tehnološkog fakulteta, Leskovac, no. 16 (2007):57-63,
https://hdl.handle.net/21.15107/rcub_agrospace_1464 .