Characterization of multi-functional, biodegradable sodium metabisulfite-incorporated films based on polycarprolactone for active food packaging applications

Abstract Consumer demand warrants improved efficacy and environmental impact of food packaging modalities. Here, multifunctional biodegradable films were prepared using 10, 20, and 40 wt% sodium metabisulfite (SM) as an active compound along with polycaprolactone (PCL). Increased SM content significantly affected film oxygen scavenging, antioxidant, anti-browning, and antimicrobial properties (p