South Korean Researchers Develop Edible Biofilm

Researchers at Chungnam National University in South Korea have developed a new edible biofilm combining chitosan (CS) and gallic acid (GA) to extend the shelf life of fruits and reduce food waste. This innovative coating addresses the limitations of traditional chitosan, which has weak barrier and antimicrobial properties, by incorporating GA, known for its antimicrobial and antioxidant benefits. The resulting CS-GA film not only enhances mechanical strength but also demonstrates improved antibacterial activity and UV-blocking capabilities, making it a promising sustainable alternative to synthetic packaging. The study highlights the potential of this biofilm to mitigate the 17% of food wasted globally, which contributes to environmental issues. Professor Won Ho Park emphasized the goal of creating a CS-based biofilm with enhanced properties to combat food degradation. This research aligns with global sustainability efforts aiming to reduce food waste by half by 2030.