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Supercritical impregnation of cellulose acetate with thymol

Samo za registrovane korisnike
2015
Autori
Milovanović, Stoja
Stamenić, Marko
Marković, Darka
Ivanović, Jasna
Žižović, Irena
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
Present work was aimed to investigate supercritical solvent impregnation of thymol into cellulose acetate in order to explore the possibility of developing a new functionalized solvent-free material with antimicrobial properties. Impregnation experiments were carried out with supercritical carbon dioxide at 10, 15 and 20 MPa, and at 35 and 50 degrees C. The time of impregnation was varied from 2 to 44h. Samples of impregnated cellulose acetate were tested against selected microorganisms. Thymol release kinetic studies were performed and obtained results were correlated. The impregnation yield varied from 4.51% to 72.26% depending on the operating conditions and impregnation time. Morphology of the samples changed significantly with the high impregnation yields, implying the impact of thymol on the cellulose acetate. The rate of impregnation was dependent on the impregnation conditions. Strong antimicrobial effect of impregnated samples against Escherichia colt, Staphylococcus aureus an...d Candida albicans strains with microbial reduction up to 99.9% was observed. Depending on the impregnation yield, samples of impregnated cellulose acetate have continuously released thymol in period from 2 to 21 days.

Ključne reči:
Supercritical impregnation / Release kinetics / Cellulose acetate / Thymol / Antimicrobial effect
Izvor:
Journal of Supercritical Fluids, 2015, 97, 107-115
Izdavač:
  • Elsevier Science Bv, Amsterdam
Finansiranje / projekti:
  • Funkcionalni fiziološki aktivni biljni materijali sa dodatom vrednošću za primenu u farmaceutskoj i prehrambenoj industriji (RS-45017)

DOI: 10.1016/j.supflu.2014.11.011

ISSN: 0896-8446

WoS: 000348952800014

Scopus: 2-s2.0-84918830774
[ Google Scholar ]
70
57
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3043
Kolekcije
  • Radovi istraživača / Researchers’ publications (TMF)
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institucija/grupa
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Milovanović, Stoja
AU  - Stamenić, Marko
AU  - Marković, Darka
AU  - Ivanović, Jasna
AU  - Žižović, Irena
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3043
AB  - Present work was aimed to investigate supercritical solvent impregnation of thymol into cellulose acetate in order to explore the possibility of developing a new functionalized solvent-free material with antimicrobial properties. Impregnation experiments were carried out with supercritical carbon dioxide at 10, 15 and 20 MPa, and at 35 and 50 degrees C. The time of impregnation was varied from 2 to 44h. Samples of impregnated cellulose acetate were tested against selected microorganisms. Thymol release kinetic studies were performed and obtained results were correlated. The impregnation yield varied from 4.51% to 72.26% depending on the operating conditions and impregnation time. Morphology of the samples changed significantly with the high impregnation yields, implying the impact of thymol on the cellulose acetate. The rate of impregnation was dependent on the impregnation conditions. Strong antimicrobial effect of impregnated samples against Escherichia colt, Staphylococcus aureus and Candida albicans strains with microbial reduction up to 99.9% was observed. Depending on the impregnation yield, samples of impregnated cellulose acetate have continuously released thymol in period from 2 to 21 days.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Supercritical Fluids
T1  - Supercritical impregnation of cellulose acetate with thymol
EP  - 115
SP  - 107
VL  - 97
DO  - 10.1016/j.supflu.2014.11.011
ER  - 
@article{
author = "Milovanović, Stoja and Stamenić, Marko and Marković, Darka and Ivanović, Jasna and Žižović, Irena",
year = "2015",
abstract = "Present work was aimed to investigate supercritical solvent impregnation of thymol into cellulose acetate in order to explore the possibility of developing a new functionalized solvent-free material with antimicrobial properties. Impregnation experiments were carried out with supercritical carbon dioxide at 10, 15 and 20 MPa, and at 35 and 50 degrees C. The time of impregnation was varied from 2 to 44h. Samples of impregnated cellulose acetate were tested against selected microorganisms. Thymol release kinetic studies were performed and obtained results were correlated. The impregnation yield varied from 4.51% to 72.26% depending on the operating conditions and impregnation time. Morphology of the samples changed significantly with the high impregnation yields, implying the impact of thymol on the cellulose acetate. The rate of impregnation was dependent on the impregnation conditions. Strong antimicrobial effect of impregnated samples against Escherichia colt, Staphylococcus aureus and Candida albicans strains with microbial reduction up to 99.9% was observed. Depending on the impregnation yield, samples of impregnated cellulose acetate have continuously released thymol in period from 2 to 21 days.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Supercritical Fluids",
title = "Supercritical impregnation of cellulose acetate with thymol",
pages = "115-107",
volume = "97",
doi = "10.1016/j.supflu.2014.11.011"
}
Milovanović, S., Stamenić, M., Marković, D., Ivanović, J.,& Žižović, I.. (2015). Supercritical impregnation of cellulose acetate with thymol. in Journal of Supercritical Fluids
Elsevier Science Bv, Amsterdam., 97, 107-115.
https://doi.org/10.1016/j.supflu.2014.11.011
Milovanović S, Stamenić M, Marković D, Ivanović J, Žižović I. Supercritical impregnation of cellulose acetate with thymol. in Journal of Supercritical Fluids. 2015;97:107-115.
doi:10.1016/j.supflu.2014.11.011 .
Milovanović, Stoja, Stamenić, Marko, Marković, Darka, Ivanović, Jasna, Žižović, Irena, "Supercritical impregnation of cellulose acetate with thymol" in Journal of Supercritical Fluids, 97 (2015):107-115,
https://doi.org/10.1016/j.supflu.2014.11.011 . .

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