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The properties of antimicrobial films derived from poly(lactic acid)/starch/chitosan blended matrix

Lookup NU author(s): Professor David XieORCiD

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Abstract

An antimicrobial material with a slow release property was developed based on poly(lactic acid)/starch/chitosan blends, in which chitosan acted as an antimicrobial agent while PLA and starch together were used as a slow-releasing device. An increase in the starch content drastically improved the hydrophilicity of the blends, which was favorable for the diffusion of the embedded chitosan. Moreover, the release of chitosan was observed to occur in two stages, with a very fast release stage initially and a slow but durable release stage as the latter. These two stages exhibited the effectiveness and long residual action of antimicrobial property of the blends respectively, demonstrating the suitability to be used for foods with high water activity, such as fresh meat. The tensile and thermal properties further verified the promising use of the blend material in packaging.

Publication metadata

Author(s): Bie P, Liu P, Yu L, Li X, Chen L, Xie F

Publication type: Article

Publication status: Published

Journal: Carbohydrate Polymers

Year: 2013

Volume: 98

Issue: 1

Pages: 959-966

Print publication date: 15/10/2013

Online publication date: 12/07/2013

Date deposited: 10/10/2023

ISSN (print): 0144-8617

ISSN (electronic): 1879-1344

Publisher: Elsevier

URL: https://doi.org/10.1016/j.carbpol.2013.07.004

DOI: 10.1016/j.carbpol.2013.07.004

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