TY  - JOUR
AU  - Lević, Steva
AU  - Pajić-Lijaković, Ivana
AU  - Đorđević, Verica
AU  - Rac, Vladislav
AU  - Rakić, Vesna M.
AU  - Šolević Knudsen, Tatjana
AU  - Pavlović, Vladimir B.
AU  - Bugarski, Branko
AU  - Nedović, Viktor
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2991
AB  - In this study, calcium alginate beads immobilizing D-limonene (solid systems) have been manufactured starting from emulsions of this flavor in sodium alginate (liquid systems). The effects of alginate concentration (0.02 and 0.03 g/mL) and flavor content (5 and 10 % w/w) on viscosity, conductivity and stability of emulsions were investigated. The flavor droplets in emulsions are bigger as polymer solution is more concentrated and contains more of the flavor. When emulsions have been subjected to electrostatic extrusion and upon Na+-Ca2+ ion exchange, smaller (similar to 960 to similar to 1450 mm) and less spherical beads were obtained (sphericity factor 0.003-0.21) compared to beads produced by simple dripping technique (without electrostatic field). When wet beads were air dried, they shrunk less if they had higher content of the flavor. Novel mathematical model describing swelling kinetics of dried beads is developed. In this work, D-limonene was efficiently immobilized within Ca-alginate beads (immobilization efficiency similar to 50 to similar to 77%) and its thermal stability was confirmed by TG/MS analysis.
PB  - Elsevier Sci Ltd, Oxford
T2  - Food Hydrocolloids
T1  - Characterization of sodium alginate/D-limonene emulsions and respective calcium alginate/D-limonene beads produced by electrostatic extrusion
EP  - 123
SP  - 111
VL  - 45
DO  - 10.1016/j.foodhyd.2014.10.001
ER  - 

@article{
author = "Lević, Steva and Pajić-Lijaković, Ivana and Đorđević, Verica and Rac, Vladislav and Rakić, Vesna M. and Šolević Knudsen, Tatjana and Pavlović, Vladimir B. and Bugarski, Branko and Nedović, Viktor",
year = "2015",
abstract = "In this study, calcium alginate beads immobilizing D-limonene (solid systems) have been manufactured starting from emulsions of this flavor in sodium alginate (liquid systems). The effects of alginate concentration (0.02 and 0.03 g/mL) and flavor content (5 and 10 % w/w) on viscosity, conductivity and stability of emulsions were investigated. The flavor droplets in emulsions are bigger as polymer solution is more concentrated and contains more of the flavor. When emulsions have been subjected to electrostatic extrusion and upon Na+-Ca2+ ion exchange, smaller (similar to 960 to similar to 1450 mm) and less spherical beads were obtained (sphericity factor 0.003-0.21) compared to beads produced by simple dripping technique (without electrostatic field). When wet beads were air dried, they shrunk less if they had higher content of the flavor. Novel mathematical model describing swelling kinetics of dried beads is developed. In this work, D-limonene was efficiently immobilized within Ca-alginate beads (immobilization efficiency similar to 50 to similar to 77%) and its thermal stability was confirmed by TG/MS analysis.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Food Hydrocolloids",
title = "Characterization of sodium alginate/D-limonene emulsions and respective calcium alginate/D-limonene beads produced by electrostatic extrusion",
pages = "123-111",
volume = "45",
doi = "10.1016/j.foodhyd.2014.10.001"
}

Lević, S., Pajić-Lijaković, I., Đorđević, V., Rac, V., Rakić, V. M., Šolević Knudsen, T., Pavlović, V. B., Bugarski, B.,& Nedović, V.. (2015). Characterization of sodium alginate/D-limonene emulsions and respective calcium alginate/D-limonene beads produced by electrostatic extrusion. in Food Hydrocolloids
Elsevier Sci Ltd, Oxford., 45, 111-123.
https://doi.org/10.1016/j.foodhyd.2014.10.001

Lević S, Pajić-Lijaković I, Đorđević V, Rac V, Rakić VM, Šolević Knudsen T, Pavlović VB, Bugarski B, Nedović V. Characterization of sodium alginate/D-limonene emulsions and respective calcium alginate/D-limonene beads produced by electrostatic extrusion. in Food Hydrocolloids. 2015;45:111-123.
doi:10.1016/j.foodhyd.2014.10.001 .

Lević, Steva, Pajić-Lijaković, Ivana, Đorđević, Verica, Rac, Vladislav, Rakić, Vesna M., Šolević Knudsen, Tatjana, Pavlović, Vladimir B., Bugarski, Branko, Nedović, Viktor, "Characterization of sodium alginate/D-limonene emulsions and respective calcium alginate/D-limonene beads produced by electrostatic extrusion" in Food Hydrocolloids, 45 (2015):111-123,
https://doi.org/10.1016/j.foodhyd.2014.10.001 . .

TY  - JOUR
AU  - Kuburović, Nataša
AU  - Todorović, Marija
AU  - Raicević, Vera
AU  - Orlović, Aleksandar
AU  - Jovanović, Ljubinko
AU  - Nikolić, Jasmina
AU  - Kuburović, Vladimir
AU  - Drmanić, Saša
AU  - Solević, Tatjana
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1164
AB  - Contamination of groundwater by methyl tertiary butyl ether (MTBE), that is detected in wastewater of petrochemical industry, is an increasing problem to water supply companies. The subjects of this research were the methods of photolytic, photocatalytic and microbiological degradation of methyl tertiary butyl ether (MTBE) dissolved in wastewaters. The effects of concentrated solar radiation simulated with sodium lamp (SONT UV 400) have been investigated in laboratory experiments. Our result indicated that bacteria Pseudomonas strain CY, isolated from the kerosene, and added alone, was able to gradually degrade MTBE and to decrease its concentration for 93.6% in 12 h. However, the percentage of photolytic degradation decrease in only 4 h was 99.2%. By adding Pseudomonas strain CY after 4 h of light treatment, the degradation was enhanced to 99.55% in additional 5 h. The photocatalytic process was performed in slurry-catalyst reactor with different concentrations of TiO2 catalyst: 5, 0.5 and 0.25 g/L. The MTBE degradation producing carbon dioxide reached 91% in only 150 min, when 5 g/L of catalyst was used.
PB  - Elsevier Science Bv, Amsterdam
T2  - Desalination
T1  - Removal of methyl tertiary butyl ether from wastewaters using photolytic, photocatalytic and microbiological degradation processes
EP  - 128
IS  - 1-3
SP  - 123
VL  - 213
DO  - 10.1016/j.desal.2006.03.605
ER  - 

@article{
author = "Kuburović, Nataša and Todorović, Marija and Raicević, Vera and Orlović, Aleksandar and Jovanović, Ljubinko and Nikolić, Jasmina and Kuburović, Vladimir and Drmanić, Saša and Solević, Tatjana",
year = "2007",
abstract = "Contamination of groundwater by methyl tertiary butyl ether (MTBE), that is detected in wastewater of petrochemical industry, is an increasing problem to water supply companies. The subjects of this research were the methods of photolytic, photocatalytic and microbiological degradation of methyl tertiary butyl ether (MTBE) dissolved in wastewaters. The effects of concentrated solar radiation simulated with sodium lamp (SONT UV 400) have been investigated in laboratory experiments. Our result indicated that bacteria Pseudomonas strain CY, isolated from the kerosene, and added alone, was able to gradually degrade MTBE and to decrease its concentration for 93.6% in 12 h. However, the percentage of photolytic degradation decrease in only 4 h was 99.2%. By adding Pseudomonas strain CY after 4 h of light treatment, the degradation was enhanced to 99.55% in additional 5 h. The photocatalytic process was performed in slurry-catalyst reactor with different concentrations of TiO2 catalyst: 5, 0.5 and 0.25 g/L. The MTBE degradation producing carbon dioxide reached 91% in only 150 min, when 5 g/L of catalyst was used.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Desalination",
title = "Removal of methyl tertiary butyl ether from wastewaters using photolytic, photocatalytic and microbiological degradation processes",
pages = "128-123",
number = "1-3",
volume = "213",
doi = "10.1016/j.desal.2006.03.605"
}

Kuburović, N., Todorović, M., Raicević, V., Orlović, A., Jovanović, L., Nikolić, J., Kuburović, V., Drmanić, S.,& Solević, T.. (2007). Removal of methyl tertiary butyl ether from wastewaters using photolytic, photocatalytic and microbiological degradation processes. in Desalination
Elsevier Science Bv, Amsterdam., 213(1-3), 123-128.
https://doi.org/10.1016/j.desal.2006.03.605

Kuburović N, Todorović M, Raicević V, Orlović A, Jovanović L, Nikolić J, Kuburović V, Drmanić S, Solević T. Removal of methyl tertiary butyl ether from wastewaters using photolytic, photocatalytic and microbiological degradation processes. in Desalination. 2007;213(1-3):123-128.
doi:10.1016/j.desal.2006.03.605 .

Kuburović, Nataša, Todorović, Marija, Raicević, Vera, Orlović, Aleksandar, Jovanović, Ljubinko, Nikolić, Jasmina, Kuburović, Vladimir, Drmanić, Saša, Solević, Tatjana, "Removal of methyl tertiary butyl ether from wastewaters using photolytic, photocatalytic and microbiological degradation processes" in Desalination, 213, no. 1-3 (2007):123-128,
https://doi.org/10.1016/j.desal.2006.03.605 . .