Development of Antioxidant Packaging Film Based on Chinese Bayberry Tannin Extract and Polyvinyl Alcohol

The current work explores the potential use of commercial Chinese bayberry tannin (BT) to develop antioxidant PVA-based films using solvent casting process for packaging applications. effect BT concentration on opacity, water resistance and capacity resulting was investigated. Properties like tensile strength, thermal behavior, morphological aspects were also characterized. experimental results showed that PVA/BT formed with uniformly brown color generally good transparency, offering ability. PVA film containing presented slightly higher according moisture content vapor permeability, especially at low (