Fabrication of Food Packaging Films Using a Composite of Ethylene-Vinyl Acetate and Quaternized Chitosan for Improved Food Safety
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The demand for polymer-based active packaging materials in the food industry is rising, driven by the need to extend shelf life and prevent cross-contamination. Food contact materials (FCMs) are critical in preventing foodborne illness and ensuring food safety, as they can lead to food spoilage and contamination through direct contact with various types of produce. In this study, we developed antimicrobial food packaging films using ethylene-vinyl acetate (EVA) copolymer and a natural antimicrobial agent, chitosan derivatives. The quaternized chitosan derivative (HACC) showed over about 99% high antimicrobial activity against E.coli and S.epidermidis. The manufactured EVA/HACC film maintained mechanical durability compared to untreated film and demonstrated antimicrobial persistence for more than two months. Therefore, the EVA/HACC film is anticipated to be used as a new food contact material in the food industry to prevent food spoilage and contamination and and improving food safety.