PVP/PVA blended hydrogels as a biofilm for use in food packaging applications

Abstract

Bio-films have been produced that attract attention with their functional behavior among conventional food packaging materials of bio-based polymer blends. The physical and morphological properties of copolymeric biofilms have been extensively investigated. Biodegradable polymer and copolymer films were produced by in situ polymerization technique and prepared as solution casting. The strong water absorbency of polyvinyl alcohol and the antimicrobial property of polyvinylpyrrolidone are combined in a single material. Structural and morphological properties of the films were characterized by Fourier-Transform Infrared Spectroscopy and Scanning Electron Microscope analysis. These results show that the films obtained can be used as an environmentally friendly bio-based polymer blend packaging material to extend the shelf life of food products.