Optimization of Nano-SiO2Tea PolyphenolPullulan Edible Composite Films for Postharvest Preservation of Cherry Tomatoes

Edible composite coatings represent an alternative approach to reducing postharvest losses and extending the shelf life of perishable fruits. This study developed a nano-biopolymer coating by integrating pullulan (PUL), nano-silica (Nano-SiO2), and tea polyphenols (TP) to retard deterioration in cherry tomatoes (Solanum lycopersicum var. cerasiforme). Optimized through response surface methodology (0.06% Nano-SiO2, 0.1% TP, 1.8% PUL, 0.77% glycerol), the resulting Nano-SiO2/PUL/TP composite...