TY  - JOUR
AU  - Radović, Marko N.
AU  - Adamović, Tijana
AU  - Pavlović, Jelena
AU  - Rusmirović, Jelena
AU  - Tadić, Vanja
AU  - Branković, Zorica
AU  - Ivanović, Jasna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4232
AB  - Supercritical CO2 impregnation process was used for the first time to fabricate biodegradable gelatin-chitosan (G/Ch) films containing dove oil (CO) for potential use in active food packaging. All the impregnations were carried out at moderately low temperature (40 degrees C). Aiming to maximize CO loading in the films with acceptable morphological, structural and thermal properties, CO2 pressure, impregnation time and G:Ch mass ratio were varied. Gelatin fraction in the films of 25-50 wt. %, scCO(2) pressures of 10-20 MPa and impregnation time of 2-6 h impregnation favoured the CO loading. Processing of the film with equal gelatin to chitosan mass ratio (G/Ch(50:50)) at 10 MPa for 2 h yielded sufficiently high loading (56 mg CO/g(film)) without an adverse effect on morphological properties. The G/Ch(50:50) film was therefore chosen for structural and thermal analyses. ATR-FTIR analysis confirmed successful CO incorporation into the G/Ch(50:50) and its interaction with the film. Plasticizing effect of scCO(2) and CO on the film was evidenced by DSC. Incorporation of 56 mg CO/g(film) into the G/Ch(50:50) didn't affect thermal stability of the film. Beside environmental benefits, supercritical impregnation process enables fast fabrication of G/Ch bio-composite films containing CO, thermally stable to 110 degrees C, which is suitable for most of food packaging applications.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof
EP  - 130
IS  - 2
SP  - 119
VL  - 25
DO  - 10.2298/CICEQ180323025R
ER  - 

@article{
author = "Radović, Marko N. and Adamović, Tijana and Pavlović, Jelena and Rusmirović, Jelena and Tadić, Vanja and Branković, Zorica and Ivanović, Jasna",
year = "2019",
abstract = "Supercritical CO2 impregnation process was used for the first time to fabricate biodegradable gelatin-chitosan (G/Ch) films containing dove oil (CO) for potential use in active food packaging. All the impregnations were carried out at moderately low temperature (40 degrees C). Aiming to maximize CO loading in the films with acceptable morphological, structural and thermal properties, CO2 pressure, impregnation time and G:Ch mass ratio were varied. Gelatin fraction in the films of 25-50 wt. %, scCO(2) pressures of 10-20 MPa and impregnation time of 2-6 h impregnation favoured the CO loading. Processing of the film with equal gelatin to chitosan mass ratio (G/Ch(50:50)) at 10 MPa for 2 h yielded sufficiently high loading (56 mg CO/g(film)) without an adverse effect on morphological properties. The G/Ch(50:50) film was therefore chosen for structural and thermal analyses. ATR-FTIR analysis confirmed successful CO incorporation into the G/Ch(50:50) and its interaction with the film. Plasticizing effect of scCO(2) and CO on the film was evidenced by DSC. Incorporation of 56 mg CO/g(film) into the G/Ch(50:50) didn't affect thermal stability of the film. Beside environmental benefits, supercritical impregnation process enables fast fabrication of G/Ch bio-composite films containing CO, thermally stable to 110 degrees C, which is suitable for most of food packaging applications.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof",
pages = "130-119",
number = "2",
volume = "25",
doi = "10.2298/CICEQ180323025R"
}

Radović, M. N., Adamović, T., Pavlović, J., Rusmirović, J., Tadić, V., Branković, Z.,& Ivanović, J.. (2019). Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 25(2), 119-130.
https://doi.org/10.2298/CICEQ180323025R

Radović MN, Adamović T, Pavlović J, Rusmirović J, Tadić V, Branković Z, Ivanović J. Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof. in Chemical Industry & Chemical Engineering Quarterly. 2019;25(2):119-130.
doi:10.2298/CICEQ180323025R .

Radović, Marko N., Adamović, Tijana, Pavlović, Jelena, Rusmirović, Jelena, Tadić, Vanja, Branković, Zorica, Ivanović, Jasna, "Supercritical co2 impregnation of gelatin-chitosan films with clove essential oil and characterization thereof" in Chemical Industry & Chemical Engineering Quarterly, 25, no. 2 (2019):119-130,
https://doi.org/10.2298/CICEQ180323025R . .

TY  - JOUR
AU  - Žižović, Irena
AU  - Senerović, Lidija
AU  - Morić, Ivana
AU  - Adamović, Tijana
AU  - Jovanović, Milena
AU  - Kalagasidis Krušić, Melina
AU  - Mišić, Dušan
AU  - Stojanović, Dušica
AU  - Milovanović, Stoja
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3923
AB  - This study discusses utilization of supercritical carbon dioxide for impregnation of cellulose acetate films with thymol in order to produce material with anti-biofilm activity against Pseudomonas aeruginosa and Staphylococcus aureus. Analysis of anti-biofilm activity of cellulose acetate beads impregnated with thymol suggested that optimal thymol loading was in the range from 26% to 30% for efficient reduction of biofilm formation and eradication of pre-formed biofilms. Polymer films were fabricated by the solvent casting method from polymer solutions of different contents, and loaded with thymol using supercritical carbon dioxide at 15.5 MPa and 35 degrees C. The film containing 30% of thymol (F1 30%) exhibited substantial anti-adhesion properties inhibiting biofilm formation on its surface and considerably reduced formation of biofilms on the surrounding surfaces (up to 80%) by all tested strains including antibiotic resistant P. aeruginosa DM50 and methicillin-resistant S. aureus.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus
EP  - 20
SP  - 11
VL  - 140
DO  - 10.1016/j.supflu.2018.05.025
ER  - 

@article{
author = "Žižović, Irena and Senerović, Lidija and Morić, Ivana and Adamović, Tijana and Jovanović, Milena and Kalagasidis Krušić, Melina and Mišić, Dušan and Stojanović, Dušica and Milovanović, Stoja",
year = "2018",
abstract = "This study discusses utilization of supercritical carbon dioxide for impregnation of cellulose acetate films with thymol in order to produce material with anti-biofilm activity against Pseudomonas aeruginosa and Staphylococcus aureus. Analysis of anti-biofilm activity of cellulose acetate beads impregnated with thymol suggested that optimal thymol loading was in the range from 26% to 30% for efficient reduction of biofilm formation and eradication of pre-formed biofilms. Polymer films were fabricated by the solvent casting method from polymer solutions of different contents, and loaded with thymol using supercritical carbon dioxide at 15.5 MPa and 35 degrees C. The film containing 30% of thymol (F1 30%) exhibited substantial anti-adhesion properties inhibiting biofilm formation on its surface and considerably reduced formation of biofilms on the surrounding surfaces (up to 80%) by all tested strains including antibiotic resistant P. aeruginosa DM50 and methicillin-resistant S. aureus.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus",
pages = "20-11",
volume = "140",
doi = "10.1016/j.supflu.2018.05.025"
}

Žižović, I., Senerović, L., Morić, I., Adamović, T., Jovanović, M., Kalagasidis Krušić, M., Mišić, D., Stojanović, D.,& Milovanović, S.. (2018). Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus. in Journal of Supercritical Fluids
Elsevier Science Bv, Amsterdam., 140, 11-20.
https://doi.org/10.1016/j.supflu.2018.05.025

Žižović I, Senerović L, Morić I, Adamović T, Jovanović M, Kalagasidis Krušić M, Mišić D, Stojanović D, Milovanović S. Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus. in Journal of Supercritical Fluids. 2018;140:11-20.
doi:10.1016/j.supflu.2018.05.025 .

Žižović, Irena, Senerović, Lidija, Morić, Ivana, Adamović, Tijana, Jovanović, Milena, Kalagasidis Krušić, Melina, Mišić, Dušan, Stojanović, Dušica, Milovanović, Stoja, "Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus" in Journal of Supercritical Fluids, 140 (2018):11-20,
https://doi.org/10.1016/j.supflu.2018.05.025 . .

TY  - JOUR
AU  - Adamović, Tijana
AU  - Milovanović, Stoja
AU  - Marković, Darka
AU  - Žižović, Irena
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3817
AB  - Cellulose acetate films were impregnated with carvacrol using supercritical carbon dioxide. The supercritical impregnation process, conducted in a static regime at pressure of 21 MPa and temperature of 50°C, was optimized by variation in the processing time (30 and 120 min) and decompression rate (from 0.3 MPa/min to 36 MPa/min). Characterization of the obtained cellulose acetate films was performed by Atomic Force Microscopy and Differential Scanning Calorimetry. Effects of glycerol and carvacrol on the properties of the films were discussed. Release kinetics from the cellulose acetate film with 31.4% of carvacrol was investigated in a physiological saline solution. In addition, the Higuchi and Korsmeyer-Peppas release models fitted the carvacrol release curve well. Obtained cellulose acetate films impregnated with carvacrol can be of interest for the application in medicine as wound dressings considering their biocompatibility and biodegradability as well as their potential antimicrobial activity or in the food industry as an active food packaging.
AB  - Filmovi acetata celuloze su impregnirani karvakrolom pomoću natkritičnog ugljenik(IV)-oksida. Proces natkritične impregnacije, izveden u statičkom režimu na pritisku 21 MPa i temperaturi 50°C, je optimizovan varijacijom procesnog vremena (30 i 120 min) i brzine dekompresije (od 0,3 MPa/min do 36 MPa/min). Karakterizacija dobijenih filmova acetata celuloze je izvedena pomoću mikroskopije atomskih sila i diferencijalne skenirajuće kalorimetrije. Efekat glicerola i karvakrola na karakteristike dobijenih filmova je objašnjen. Otpuštanje karvakrola iz filma koji je ima 31,4% primos impregnacije karvakrola je ispitano u fiziološkom rastvoru. Dodatno, Higuči i Korsmejer-Pepas modeli otpuštanja su dobro fitovali krivu otpuštanja karvakrola. Dobijeni filmovi acetata celuloze impregnirani karvakrolom mogu biti značajni za primenu u medicini za previjanje rana uzimajući u obzir njihovu biokompatibilnost i biodegradabilnost kao i potencijalno antimikrobno dejstvo ili u industriji hrane kao aktivno pakovanje.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide
T1  - Impregnacija filmova acetata celuloze karvakrolom pomoću natkritičnog ugljenik(IV)-oksida
EP  - 25
IS  - 1
SP  - 19
VL  - 73
DO  - 10.5937/tehnika1801017A
ER  - 

@article{
author = "Adamović, Tijana and Milovanović, Stoja and Marković, Darka and Žižović, Irena",
year = "2018",
abstract = "Cellulose acetate films were impregnated with carvacrol using supercritical carbon dioxide. The supercritical impregnation process, conducted in a static regime at pressure of 21 MPa and temperature of 50°C, was optimized by variation in the processing time (30 and 120 min) and decompression rate (from 0.3 MPa/min to 36 MPa/min). Characterization of the obtained cellulose acetate films was performed by Atomic Force Microscopy and Differential Scanning Calorimetry. Effects of glycerol and carvacrol on the properties of the films were discussed. Release kinetics from the cellulose acetate film with 31.4% of carvacrol was investigated in a physiological saline solution. In addition, the Higuchi and Korsmeyer-Peppas release models fitted the carvacrol release curve well. Obtained cellulose acetate films impregnated with carvacrol can be of interest for the application in medicine as wound dressings considering their biocompatibility and biodegradability as well as their potential antimicrobial activity or in the food industry as an active food packaging., Filmovi acetata celuloze su impregnirani karvakrolom pomoću natkritičnog ugljenik(IV)-oksida. Proces natkritične impregnacije, izveden u statičkom režimu na pritisku 21 MPa i temperaturi 50°C, je optimizovan varijacijom procesnog vremena (30 i 120 min) i brzine dekompresije (od 0,3 MPa/min do 36 MPa/min). Karakterizacija dobijenih filmova acetata celuloze je izvedena pomoću mikroskopije atomskih sila i diferencijalne skenirajuće kalorimetrije. Efekat glicerola i karvakrola na karakteristike dobijenih filmova je objašnjen. Otpuštanje karvakrola iz filma koji je ima 31,4% primos impregnacije karvakrola je ispitano u fiziološkom rastvoru. Dodatno, Higuči i Korsmejer-Pepas modeli otpuštanja su dobro fitovali krivu otpuštanja karvakrola. Dobijeni filmovi acetata celuloze impregnirani karvakrolom mogu biti značajni za primenu u medicini za previjanje rana uzimajući u obzir njihovu biokompatibilnost i biodegradabilnost kao i potencijalno antimikrobno dejstvo ili u industriji hrane kao aktivno pakovanje.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide, Impregnacija filmova acetata celuloze karvakrolom pomoću natkritičnog ugljenik(IV)-oksida",
pages = "25-19",
number = "1",
volume = "73",
doi = "10.5937/tehnika1801017A"
}

Adamović, T., Milovanović, S., Marković, D.,& Žižović, I.. (2018). Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 73(1), 19-25.
https://doi.org/10.5937/tehnika1801017A

Adamović T, Milovanović S, Marković D, Žižović I. Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide. in Tehnika. 2018;73(1):19-25.
doi:10.5937/tehnika1801017A .

Adamović, Tijana, Milovanović, Stoja, Marković, Darka, Žižović, Irena, "Impregnation of cellulose acetate films with carvacrol using supercritical carbon ioxide" in Tehnika, 73, no. 1 (2018):19-25,
https://doi.org/10.5937/tehnika1801017A . .

TY  - JOUR
AU  - Milovanović, Stoja
AU  - Adamović, Tijana
AU  - Aksentijević, Ksenija
AU  - Mišić, Dušan
AU  - Ivanović, Jasna
AU  - Žižović, Irena
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3571
AB  - Supercritical CO2 was used as a green solvent and impregnation medium for loading cellulose acetate beads with carvacrol in order to obtain a biomaterial with antibacterial properties. Supercritical solvent impregnation was performed in a high-pressure view cell at temperature of 50 degrees C and pressures of 10, 21, and 30 MPa with the processing time ranging from 2 to 18 h. The rate of impregnation increased with the pressure increase. However, maximum impregnation yield (round 60%) was not affected by the pressure applied. Selected samples of the impregnated cellulose acetate containing 6-60% of carvacrol were proven to have considerable antibacterial effect against Gram-positive and Gram-negative bacterial strains including methicillin-resistant Staphylococcus aureus which causes severe infections in humans and animals. In addition, cellulose acetate beads containing 6.0-33.6% of carvacrol were shown to have a porous structure with submicron pores which is of interest for the controlled delivery applications.
PB  - Hindawi Ltd, London
T2  - International Journal of Polymer Science
T1  - Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation
VL  - 2017
DO  - 10.1155/2017/8762649
ER  - 

@article{
author = "Milovanović, Stoja and Adamović, Tijana and Aksentijević, Ksenija and Mišić, Dušan and Ivanović, Jasna and Žižović, Irena",
year = "2017",
abstract = "Supercritical CO2 was used as a green solvent and impregnation medium for loading cellulose acetate beads with carvacrol in order to obtain a biomaterial with antibacterial properties. Supercritical solvent impregnation was performed in a high-pressure view cell at temperature of 50 degrees C and pressures of 10, 21, and 30 MPa with the processing time ranging from 2 to 18 h. The rate of impregnation increased with the pressure increase. However, maximum impregnation yield (round 60%) was not affected by the pressure applied. Selected samples of the impregnated cellulose acetate containing 6-60% of carvacrol were proven to have considerable antibacterial effect against Gram-positive and Gram-negative bacterial strains including methicillin-resistant Staphylococcus aureus which causes severe infections in humans and animals. In addition, cellulose acetate beads containing 6.0-33.6% of carvacrol were shown to have a porous structure with submicron pores which is of interest for the controlled delivery applications.",
publisher = "Hindawi Ltd, London",
journal = "International Journal of Polymer Science",
title = "Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation",
volume = "2017",
doi = "10.1155/2017/8762649"
}

Milovanović, S., Adamović, T., Aksentijević, K., Mišić, D., Ivanović, J.,& Žižović, I.. (2017). Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation. in International Journal of Polymer Science
Hindawi Ltd, London., 2017.
https://doi.org/10.1155/2017/8762649

Milovanović S, Adamović T, Aksentijević K, Mišić D, Ivanović J, Žižović I. Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation. in International Journal of Polymer Science. 2017;2017.
doi:10.1155/2017/8762649 .

Milovanović, Stoja, Adamović, Tijana, Aksentijević, Ksenija, Mišić, Dušan, Ivanović, Jasna, Žižović, Irena, "Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation" in International Journal of Polymer Science, 2017 (2017),
https://doi.org/10.1155/2017/8762649 . .