Characterization of chitosan-oleic acid composite films
作者： Maria Vargas , Ana Albors , Amparo Chiralt , Chelo González-Martínez
DOI: 10.1016/J.FOODHYD.2008.02.009
关键词:
摘要: Abstract Edible films based on high molecular weight chitosan (CH) and different concentrations of oleic acid (OA) were prepared. Film-forming dispersions (FFD) characterized in terms rheological properties, surface tension, particle size distribution ζ -potential. In order to study the impact incorporation OA into CH matrix, water sorption isotherms, vapour permeability (WVP), mechanical optical properties dry evaluated. Results showed that increase promoted changes charge FFD particles, which had an FFD. As regards film higher content, lower WVP moisture capacity. general, addition matrix leads a significant gloss translucency decrease tensile strength, elongation at break elastic modulus composite films. The related with their microstructure, was observed by SEM.
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