Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities

Ajay Mittal and Avtar Singh and Soottawat Benjakul and Thummanoon Prodpran and Krisana Nilsuwan and Nurul Huda and Koro de la Caba (2021) Composite film based on chitosan and epigallocatechin gallate grafted chitosan: characterization, antioxidant and antimicrobial activities. Food Hydrocolloids, 111. pp. 1-10. ISSN 0268-005X

	Text Composite film based on chitosan and epigallocatechin gallate grafted chitosan_ characterization, antioxidant and antimicrobial activities_ABSTRACT.pdf Download (63kB)
	Text Composite film based on chitosan and epigallocatechin gallate grafted chitosan_ characterization, antioxidant and antimicrobial activities.pdf Restricted to Registered users only Download (473kB) \| Request a copy

URL: https://www.sciencedirect.com/science/article/pii/...

Abstract

The effect of chitosan-epigallocatechin gallate conjugate (CS-EGCG) at various ratios (10:0, 9:1, 8:2, 7:3, 6:4 and 5:5, w/w) and glycerol (30 and 50%, w/w) on mechanical, barrier and optical properties of CS films and CS/CS-EGCG composite films was studied. CS films added with 30 or 50% glycerol (CS-30G or CS-50G, respectively) had high tensile strength and elongation at break. Generally, CS/CS-EGCG composite films had higher resistance to light transmission than CS films (p < 0.05). With augmenting concentrations of CS-EGCG, films with lower lightness (L*) and higher redness (a*) and yellowness (b*) were obtained. Therefore, among composite films, those with CS/CS-EGCG ratio of 8:2, containing 30 or 50% glycerol, were selected for further analyses in comparison to CS films. Composite films, regardless of glycerol levels, showed higher antioxidant and antimicrobial activities as compared to CS films (p < 0.05). Overall, CS/CS-EGCG (8:2) composite films had satisfactory physical properties with increased antimicrobial and antioxidant activities and could serve as promising packaging for food shelf-life extension.

Item Type:	Article
Keyword:	Chitosan , Epigallocatechin Gallate , Films , Antioxidant , Antimicrobial
Subjects:	T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP248.13-248.65 Biotechnology
Department:	FACULTY > Faculty of Food Science and Nutrition
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	06 Dec 2021 08:01
Last Modified:	06 Dec 2021 08:01
URI:	https://eprints.ums.edu.my/id/eprint/31359

Actions (login required)

View Item