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Published on: October 23, 2012
Chitosan-Based Bionanocomposite Films Prepared by Emulsion Technique for Food Preservation
Elena Butnaru1, Elena Stoleru2, Mihai Adrian Brebu3
1Physical Chemistry of Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, RO 700487 Iasi, Romania. elena.parparita@icmpp.ro.
Abstract:
Biopolymer nanocomposite films were prepared by casting film-forming emulsions based on chitosan/Tween 80/rosehip seed oil and dispersed montmorillonite nanoclay C30B. The effect of composition on structural, morphological characteristics and, mechanical, barrier, antimicrobial and antioxidant properties was studied. The presence of rosehip seed oil in chitosan films led to the formation of flexible films with improved mechanical, gas and water vapour barrier properties and antioxidant activity. The in vitro antibacterial tests against Escherichia coli, Salmonella typhymurium, and Bacillus cereus showed that the chitosan/rosehip seed oil/montmorillonite nanoclay composites effectively inhibited all the three microorganisms.
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