Work

Effects of Incorporation of Multicomponent Active Agents in Chitosan Biopolymer: A Simple Method for Sustainable Food Packaging

Year: 2025

Type: article

Abstract: Chitosan-gelatin (Ch-ge) based transparent films containing gallic-acid (GA) grafted starch nanoparticles (GA-SNPs) namely, Ch-ge-GA-SNP-1 and Ch-ge-GA-SNP-2 with different amounts of GA-SNPs have been synthesized by solution casting method and characterized. The incorporation of multicomponents showed effective properties of chitosan films. Scanning Electron Microscopy (SEM), XRD and FTIR analysis revealed a homogenous and transparent nature and uniform distribution of the newly synthesized films respectively. The antibacterial activity of the films against both gram-positive and gram-negative bacteria (B. substilis and E. coli) indicated that Ch-ge-GA-SNP-2 films had pronounced antibacterial activity. The antioxidant activity of Ch-ge-GA-SNP-2 films was determined by DPPH and ABTS methods and results corresponded to 80.9% of DPPH and 84.9% of ABTS free radicals scavenging activities. The results indicated that Ch-ge-GA-SNP-2 films present a definitive advantage in terms of their barrier properties, mechanical strength as well as antibacterial and anti-oxidant activity compared to pristine chitosan-gelatin films.

Source: Innovation of Chemistry & Materials for Sustainability

DOI: 10.63654/icms.2025.02083

Authors: Srasti Yadav, Gopal Krishna Mehrotra, Pradip Kumar Dutta

Institution: Motilal Nehru National Institute of Technology

Language: English

Topic: Nanocomposite Films for Food Packaging

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: diamond

Funders: Indian Institute of Technology Kanpur, Motilal Nehru National Institute of Technology Allahabad, Malaviya National Institute of Technology, Jaipur