Improvement of the UV Barrier and Antibacterial Properties of Crosslinked Pectin/Zinc Oxide Bionanocomposite Films

Overview

Journal Polymers (Basel)

Publisher MDPI

Date 2021 Aug 10

PMID 34372009

Citations 12

Authors

Karina Dyasti Hari

Coralia V Garcia

Gye-Hwa Shin

Jun-Tae Kim

Affiliations

Soon will be listed here.

Abstract

Pectin-based antibacterial bionanocomposite films were prepared by crosslinking with calcium chloride (CaCl) and mixing with zinc oxide nanoparticles (ZnO-NPs) at various concentrations (0.5%, 1%, and 1.5% , based on pectin). Crosslinking with 1% CaCl significantly ( < 0.05) improved the tensile strength of the pectin films, although their elongation at break was decreased. The UV-light barrier property of the pectin/ZnO bionanocomposite films was significantly ( < 0.05) improved with increasing ZnO-NP concentrations. In addition, the bionanocomposite films incorporating 1.5% ZnO-NPs showed excellent antibacterial effects against both and , inhibiting over 99% of the bacteria. Therefore, the developed crosslinked pectin/ZnO bionanocomposite films show great potential as active packaging materials with excellent UV-blocking and antibacterial properties.

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