TY  - JOUR
AU  - Volić, Mina
AU  - Pajić-Lijaković, Ivana
AU  - Djordjević, Verica B.
AU  - Knežević-Jugović, Zorica
AU  - Pećinar, Ilinka
AU  - Dajić-Stevanović, Zora
AU  - Veljović, Djordje
AU  - Hadnadjev, Miroslav
AU  - Bugarski, Branko
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4665
AB  - Preparation of alginate-soy protein isolate (AL/SPI) complex beads containing essential oil of thyme was carried out by emulsification of thyme oil in aqueous sodium alginate solution blended with SPI solution, followed by atomization via electrostatic extrusion and gelification with calcium ions. The process parameters were optimized by variation of the alginate (1-2.5 wt.%) and SPI (0-1.5 wt.%) concentrations. Dry alginate-SPI particles exhibited wrinkle surface while shape distortion of hydrogel beads occurred with >= 1.5 wt.% alginate concentration, whereas SPI induced reduction of the particle size. Encapsulation efficiency of 72-80 % based on total polyphenols was achieved. In SGF the samples exhibited oil release of 42-55 % (due to matrix shrinkage and proteins degradation by pepsin activity), while the rest was delivered in SIF within 2.5 h simultaneously with swelling and degradation of the matrix.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Alginate/soy protein system for essential oil encapsulation with intestinal delivery
EP  - 24
SP  - 15
VL  - 200
DO  - 10.1016/j.carbpol.2018.07.033
ER  - 

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

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

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

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

TY  - JOUR
AU  - Pajić-Lijaković, Ivana
AU  - Lević, Steva
AU  - Hadnadjev, Miroslav
AU  - Dajić-Stevanović, Zora
AU  - Radošević, Radenko
AU  - Nedović, Viktor
AU  - Bugarski, Branko
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3701
AB  - Structural changes of Ca-alginate bead due to yeast cell loading and the impact on their mechanical properties were studied based on experimental data of cell number density per beads, cell rearrangement within the bead surface and core regions, bead average volume and density, bead storage and loss moduli. Structural changes could be explained by (1) mechanical and electrostatic cell-matrix interactions and (2) chemical interactions of the matrix with the components of the nutrition medium which include: wash out of Ca2+ ions by presence of non-gelling ions and by chelating compounds such as phosphate. According to obtained results, it was estimated that: (1) cell-matrix electrostatic interactions within the hydrogel matrix at t=0 induced the bead weakening, (2) wash out of Ca2+ ions by presence of non-gelling ions and by chelating compounds such as phosphate led to the bead weakening (regime 1, t is an element of (left perpendicular0, 2 daysright perpendicular), (3) the bead stiffness remained constant (regime 2, t is an element of (left perpendicular2, 4 daysright perpendicular)) and (4) the bead reinforcement was caused by cell clusters rapid increase and their inter connections within the bead surface region (regime 3, t is an element of (left perpendicular4, 5 daysright perpendicular)). Regulation of the matrix resistance stress and the rate of its change could lead to decrease of the micro-environmental restriction effects and the whole process optimization.
PB  - Elsevier Science Bv, Amsterdam
T2  - Biochemical Engineering Journal
T1  - Structural changes of Ca-alginate beads caused by immobilized yeast cell growth
EP  - 38
SP  - 32
VL  - 103
DO  - 10.1016/j.bej.2015.06.016
ER  - 

@article{
author = "Pajić-Lijaković, Ivana and Lević, Steva and Hadnadjev, Miroslav and Dajić-Stevanović, Zora and Radošević, Radenko and Nedović, Viktor and Bugarski, Branko",
year = "2015",
abstract = "Structural changes of Ca-alginate bead due to yeast cell loading and the impact on their mechanical properties were studied based on experimental data of cell number density per beads, cell rearrangement within the bead surface and core regions, bead average volume and density, bead storage and loss moduli. Structural changes could be explained by (1) mechanical and electrostatic cell-matrix interactions and (2) chemical interactions of the matrix with the components of the nutrition medium which include: wash out of Ca2+ ions by presence of non-gelling ions and by chelating compounds such as phosphate. According to obtained results, it was estimated that: (1) cell-matrix electrostatic interactions within the hydrogel matrix at t=0 induced the bead weakening, (2) wash out of Ca2+ ions by presence of non-gelling ions and by chelating compounds such as phosphate led to the bead weakening (regime 1, t is an element of (left perpendicular0, 2 daysright perpendicular), (3) the bead stiffness remained constant (regime 2, t is an element of (left perpendicular2, 4 daysright perpendicular)) and (4) the bead reinforcement was caused by cell clusters rapid increase and their inter connections within the bead surface region (regime 3, t is an element of (left perpendicular4, 5 daysright perpendicular)). Regulation of the matrix resistance stress and the rate of its change could lead to decrease of the micro-environmental restriction effects and the whole process optimization.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Biochemical Engineering Journal",
title = "Structural changes of Ca-alginate beads caused by immobilized yeast cell growth",
pages = "38-32",
volume = "103",
doi = "10.1016/j.bej.2015.06.016"
}

Pajić-Lijaković, I., Lević, S., Hadnadjev, M., Dajić-Stevanović, Z., Radošević, R., Nedović, V.,& Bugarski, B.. (2015). Structural changes of Ca-alginate beads caused by immobilized yeast cell growth. in Biochemical Engineering Journal
Elsevier Science Bv, Amsterdam., 103, 32-38.
https://doi.org/10.1016/j.bej.2015.06.016

Pajić-Lijaković I, Lević S, Hadnadjev M, Dajić-Stevanović Z, Radošević R, Nedović V, Bugarski B. Structural changes of Ca-alginate beads caused by immobilized yeast cell growth. in Biochemical Engineering Journal. 2015;103:32-38.
doi:10.1016/j.bej.2015.06.016 .

Pajić-Lijaković, Ivana, Lević, Steva, Hadnadjev, Miroslav, Dajić-Stevanović, Zora, Radošević, Radenko, Nedović, Viktor, Bugarski, Branko, "Structural changes of Ca-alginate beads caused by immobilized yeast cell growth" in Biochemical Engineering Journal, 103 (2015):32-38,
https://doi.org/10.1016/j.bej.2015.06.016 . .