Effects of various antimicrobial polyvinyl alcohol/tea polyphenol composite films on the shelf life of packaged strawberries - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles LWT - Food Science and Technology Year : 2019

Effects of various antimicrobial polyvinyl alcohol/tea polyphenol composite films on the shelf life of packaged strawberries

Abstract

In this study, we developed and tested various antimicrobial polyvinyl alcohol (PVA)/tea polyphenol (TP) composite films intended to extend the shelf life of packaged strawberries. Each PVA/TP film with volumetric ratios of 10/0, 9/1, 8/2, 7/3, 6/4 and 5/5 was prepared using tap-casting methods and characterized with respect to its infrared spectrum, tensile strength, oxygen permeability, water solubility, biodegradation, and antimicrobial properties. The effects of the various composite films were subsequently evaluated based on the fruit's weight loss, decay rate, firmness, pH, titratable acidity, and soluble solids. The results indicated that thePVA/TP-8/2 composite film effectively retarded the fruit's weight and firmness loss. In addition, the PVA/TP-8/2 composite film significantly retarded the fruit's titratable acid and soluble solid loss and limited microbial proliferation. Among the various antimicrobial composite films tested, the PVA/TP-8/2 composite film exhibited significant potential as a packaging material that would extend the shelf life of strawberries.
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Dates and versions

hal-02627745 , version 1 (26-05-2020)

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Weijie Lan, Rong Zhang, Saeed Ahmed, Wen Qin, Yaowen Liu. Effects of various antimicrobial polyvinyl alcohol/tea polyphenol composite films on the shelf life of packaged strawberries. LWT - Food Science and Technology, 2019, 113, 7 p. ⟨10.1016/j.lwt.2019.108297⟩. ⟨hal-02627745⟩
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