Potassium sorbate release from poly(vinyl alcohol)-bacterial cellulose films

Active packaging materials are the subject of research because their performance exceeds that of traditional packaging. From this class, antimicrobial materials extend the shelf-life of products and reduce the risk of contamination by pathogens. In this paper, new composite materials with antimicrob...

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Bibliographic Details
Published inChemical papers Vol. 66; no. 2; pp. 138 - 143
Main Authors Jipa, Iuliana Mihaela, Stoica, Anicuta, Stroescu, Marta, Dobre, Loredana-Mihaela, Dobre, Tanase, Jinga, Sorin, Tardei, Christu
Format Journal Article
LanguageEnglish
Published Heidelberg SP Versita 01.02.2012
Versita
Subjects
antimicrobial films
bacterial cellulose
Biochemistry
Biotechnology
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
composite films
Industrial Chemistry/Chemical Engineering
Materials Science
Medicinal Chemistry
Original Paper
polyvinyl alcohol
potassium sorbate
antimicrobial films
composite films
potassium sorbate
polyvinyl alcohol
bacterial cellulose
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Summary:Active packaging materials are the subject of research because their performance exceeds that of traditional packaging. From this class, antimicrobial materials extend the shelf-life of products and reduce the risk of contamination by pathogens. In this paper, new composite materials with antimicrobial properties are obtained by using polyvinyl alcohol and bacterial cellulose powder. Potassium (2 E ,4 E )-hexa-2,4-dienoate was used as the antimicrobial agent. The films thus obtained were characterised using Fourier-transform infrared spectroscopy and scanning electron microscopy. Mass transfer phenomena concerning the release of potassium (2 E ,4 E )-hexa-2,4-dienoate were investigated. The results indicated that the new biocomposite films could be used as antimicrobial packaging materials.
ISSN:0366-6352
1336-9075
1336-9075
DOI:10.2478/s11696-011-0068-4