Anthocyanin-Functionalized Hydrophobic Cellulose Composite Films as Sensitive Colorimetric Indicators to Monitor Beef Freshness.

ABSTRACT: In recent years, emerging biodegradable food-packaging materials based on nanocellulose with excellent comprehensive performance have become a promising, environmentally friendly raw material, which can be used as an ideal substrate for degradable composite films. However, the poor water resistance and flexibility of nanocellulose composite films limit their practical applications. Herein, nanocellulose films composed of chitin nanocrystals (ChNCs) and anthocyanin (BA) were utilized to obtain water-resistant, antibacterial, and flexible nanocellulose composite films. Owing to the nonpolar aromatic rings in the structure of BA, the water contact angle (WCAs) test indicated that the introduction of BA effectively improved the hydrophobicity of the nanocellulose composite film (WCA, up to 95°

SUBMITTER: Cai X 

PROVIDER: S-EPMC12652354 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature