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Antimicrobial and Mechanical Properties of β-Cyclodextrin Inclusion with Octyl Gallate in Chitosan Films and their Application in Fresh Vegetables

Antimicrobial and Mechanical Properties of β-Cyclodextrin Inclusion with Octyl Gallate in... To guarantee the safety and quality of food and prolong its shelf life, a novel multi-functionalized chitosan-based film with the outstanding antimicrobial property was prepared by incorporating with β-cyclodextrin (βCD) and octyl gallate (OG). The OG encapsulation with βCD to form inclusion complexes (βCD/OG-IC) endows OG with improved water-solubility and physicochemical stability. The formation of βCD/OG-IC has been proved through analytical techniques including FTIR, XRD, DSC and 1H NMR. Then the chitosan (CS) films containing βCD/OG-IC were fabricated and their mechanical, physical properties and antimicrobial activities against four foodborne pathogens (E. coli, S. aureus, L. monocytogenes and P. fluorescens) were evaluated. The increased antibacterial activities of the CS film containing βCD/OG-IC were demonstrated by measuring the diameter of the inhibition zone. Meanwhile, the composite films showed higher tensile strength, more excellent water vapor resistance in contrast to pure CS films. Additionally, the composite films showed slow-release capacity and enhanced antibacterial efficacy to remarkably extend the shelf life of blueberry and asparagus. Our results substantially suggest that CS film containing βCD/OG-IC is a potential candidate for use as a multi-functionalized layer in the food-packaging system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Food Biophysics Springer Journals

Antimicrobial and Mechanical Properties of β-Cyclodextrin Inclusion with Octyl Gallate in Chitosan Films and their Application in Fresh Vegetables

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References (48)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022
ISSN
1557-1858
eISSN
1557-1866
DOI
10.1007/s11483-022-09746-7
Publisher site
See Article on Publisher Site

Abstract

To guarantee the safety and quality of food and prolong its shelf life, a novel multi-functionalized chitosan-based film with the outstanding antimicrobial property was prepared by incorporating with β-cyclodextrin (βCD) and octyl gallate (OG). The OG encapsulation with βCD to form inclusion complexes (βCD/OG-IC) endows OG with improved water-solubility and physicochemical stability. The formation of βCD/OG-IC has been proved through analytical techniques including FTIR, XRD, DSC and 1H NMR. Then the chitosan (CS) films containing βCD/OG-IC were fabricated and their mechanical, physical properties and antimicrobial activities against four foodborne pathogens (E. coli, S. aureus, L. monocytogenes and P. fluorescens) were evaluated. The increased antibacterial activities of the CS film containing βCD/OG-IC were demonstrated by measuring the diameter of the inhibition zone. Meanwhile, the composite films showed higher tensile strength, more excellent water vapor resistance in contrast to pure CS films. Additionally, the composite films showed slow-release capacity and enhanced antibacterial efficacy to remarkably extend the shelf life of blueberry and asparagus. Our results substantially suggest that CS film containing βCD/OG-IC is a potential candidate for use as a multi-functionalized layer in the food-packaging system.

Journal

Food Biophysics – Springer Journals

Published: Dec 1, 2022

Keywords: Octyl gallate; Inclusion complex; Antibacterial activity; Multi-functionalized composite films; Food packaging

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