Vanillin release from poly(vinyl alcohol)-bacterial cellulose mono and multilayer films

► Mono and multilayer materials from PVA and BC were obtained. ► Release of vanillin incorporated as antimicrobial agent was evaluated. ► In multilayer systems the release rate was slower. ► Composites are proposed to be used as antimicrobial biodegradable packaging. Mono and multilayer materials fr...

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Bibliographic Details
Published in:Journal of food engineering 2013-01, Vol.114 (2), p.153-157
Main Authors: Stroescu, Marta, Stoica-Guzun, Anicuta, Jipa, Iuliana Mihaela
Format: Article
Language:English
Subjects:
Antiinfectives and antibacterials
Antimicrobial films
Bacterial cellulose
Biological and medical sciences
Controlled release
Diffusion
Food engineering
Food industries
Food microbiology
Foods
Fourier transforms
Fundamental and applied biological sciences. Psychology
General aspects
Infrared spectroscopy
Multilayers
Scanning electron microscopy
Vanillin
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Summary:► Mono and multilayer materials from PVA and BC were obtained. ► Release of vanillin incorporated as antimicrobial agent was evaluated. ► In multilayer systems the release rate was slower. ► Composites are proposed to be used as antimicrobial biodegradable packaging. Mono and multilayer materials from PVA and BC incorporating vanillin as natural antimicrobial ingredient were prepared. The composite films were characterized by means of scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The release mechanism of vanillin from composites films was investigated using a pseudo first order model. The diffusion coefficients, calculated with Fick’s law of diffusion, are ranging from 1.69×10−12 to 3.84×10−12m2s−1. The vanillin release is influenced by films composition; the multilayer films being promising in order to achieve controlled release of vanillin.
ISSN:0260-8774
1873-5770
DOI:10.1016/j.jfoodeng.2012.08.023