Resveratrol-derived carbon dots integrated into gelatin/chitosan multifunctional films for intelligent packaging.

ABSTRACT: In this study, multifunctional Resveratrol-derived carbon dots (Res-CDs) were prepared using a hydrothermal method. Res-CDs exhibited good free-radical scavenging activities, attributed to abundant surface hydroxyl groups, and effectively inhibited Staphylococcus aureus and Escherichia coli growth at a concentration of 2 mg/mL. Composite films were prepared by combining Res-CDs with gelatin/chitosan. As well as excellent mechanical properties, the prepared films exhibited smooth surfaces, thermal stability, and good antioxidant, ultraviolet-shielding, antibacterial, and pH-responsive properties. Furthermore, cell viability measurements showed that the films were safe. When applied to keeping pork fresh, the gelatin/chitosan/Res-CDs film significantly reduced the total viable

SUBMITTER: Fu T 

PROVIDER: S-EPMC11786908 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature