Biopolymer-Based Multilayer Films and Coatings for Food Preservation: an Update of the Recent Development

Abstract

Purpose of Review Biopolymers present appealing properties such as gas barrier abilities and biodegradability, which can be used to develop multilayer films for food preservation applications. This article provides an update on the recent research progress on biopolymer-based multilayer films. Recent Findings Various multilayer films have been developed based on biopolymers and their combination with other biodegradable polymers (e.g., PLA, PCL, and PVA), organic compounds (e.g., lauroyl arginate ethyl, carvacrol, natural plant extracts, and essential oils), and inorganic particles (e.g., nanoclays, silver, and metal oxides). These multilayer films present enhanced properties and functions such as barrier performance against gas, water, oil, and UV light, antimicrobial and antioxidant activities, and pH indication. Summary This article overviews the design principles and fabrication methods for multilayer films, their properties and functions, and specific food packaging applications. The current challenges and future perspectives in this area are also proposed.

Carvacrol Encapsulation in Chitosan–Carboxymethylcellulose–Alginate Nanocarriers for Postharvest Tomato Protection

“…Chitosan (CS), cellulose, and alginate (ALG) are extensively studied biopolymers for postharvest fruit protection, either as coatings or components of encapsulation systems [4][5][6][7]. Chitosan, due to its advantageous barrier properties against gases and water vapor, along with antimicrobial properties, stands out for packaging and coating applications [8].…”

Development of PBS/Nano Composite PHB-Based Multilayer Blown Films with Enhanced Properties for Food Packaging Applications

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