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Advances in Sustainable Food Packaging Applications of Chitosan/Polyvinyl Alcohol Blend Films Publisher Pubmed

Summary: Green packaging future? Review highlights chitosan/PVA blends for biodegradable films—boost strength, barriers. Tackles plastic waste in food preservation. #SustainablePackaging #FoodTech

Zhang W1 ; Khan A2 ; Ezati P3 ; Priyadarshi R2 ; Sani MA4 ; Rathod NB5 ; Goksen G6 ; Rhim JW2
Authors

Source: Food Chemistry Published:2024


Abstract

Researchers are addressing environmental concerns related to petroleum-based plastic packaging by exploring biopolymers from natural sources, chemical synthesis, and microbial fermentation. Despite the potential of individual biopolymers, they often exhibit limitations like low water resistance and poor mechanical properties. Blending polymers emerges as a promising strategy to overcome these challenges, creating films with enhanced performance. This review focuses on recent advancements in chitosan/polyvinyl alcohol (PVA) blend food packaging films. It covers molecular structure, properties, strategies for performance improvement, and applications in food preservation. The blend's excellent compatibility and intermolecular interactions make it a promising candidate for biodegradable films. Future research should explore large-scale thermoplastic technologies and investigate the incorporation of additives like natural extracts and nanoparticles to enhance film properties. Chitosan/PVA blend films offer a sustainable alternative to petroleum-based plastic packaging, with potential applications in practical food preservation. © 2024 Elsevier Ltd
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