Physical and antimicrobial properties of chitosan-tea tree essential oil composite films
2010
Sánchez-González, Laura | González-Martínez, Chelo | Chiralt, Amparo | Cháfer, Maite
Antimicrobial films were prepared by incorporating different concentrations of tea tree essential oil (TTO) into chitosan (CH) films. Film-forming dispersions (FFD) were characterized in terms of rheological properties, particle size distribution and ζ-potential. In order to study the impact of the incorporation of TTO into the CH matrix, the water vapour permeability (WVP), mechanical and optical properties of the dry films were evaluated. The properties of the films were related with their microstructure, which was observed by SEM. Furthermore, the antimicrobial effectiveness of CH-TTO composite films against Listeria monocytogenes and Penicillium italicum was studied.
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