Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Physicochemical Properties and Biological Activity of Active Films Based on Corn Peptide Incorporated Carboxymethyl Chitosan

Version 1 : Received: 14 May 2021 / Approved: 17 May 2021 / Online: 17 May 2021 (07:59:06 CEST)

A peer-reviewed article of this Preprint also exists.

Wang, L.; Lei, L.; Wan, K.; Fu, Y.; Hu, H. Physicochemical Properties and Biological Activity of Active Films Based on Corn Peptide Incorporated Carboxymethyl Chitosan. Coatings 2021, 11, 604. Wang, L.; Lei, L.; Wan, K.; Fu, Y.; Hu, H. Physicochemical Properties and Biological Activity of Active Films Based on Corn Peptide Incorporated Carboxymethyl Chitosan. Coatings 2021, 11, 604.

Journal reference: Coatings 2021, 11, 604
DOI: 10.3390/coatings11050604

Abstract

Active films based on carboxymethyl chitosan incorporated corn peptide were developed. Physicochemical properties of the films, including thickness, opacity, moisture content, color, mechanical properties, water vapor permeability, and oil resistance, were measured. Biological activities of the films, including the antioxidant and antibacterial activities, were characterized in terms of 2, 2-diphenyl-1-picrylhydrazyl free radical scavenging activity, reducing power, the total antioxidant activity, and the filter disc inhibition zone method. The results indicated that the incorporation of corn peptide caused interactions between carboxymethyl chitosan and corn peptide in Maillard reaction and gave rise to the films light yellow appearance. Compared with the Control, the degree of glycosylation, browning intensity, thickness, opacity, tensile strength, antioxidant activity, and antibacterial activity of films were increased, but the elongation, vapor permeability, and oil resistance of films were decreased. The films based on corn peptide and carboxymethyl chitosan can potentially be applied to food packaging.

Subject Areas

carboxymethy chitosan; corn peptide; antioxidant activity; antibacterial activity; film

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