Comprehensive characterization of biodegradable edible films activated with rose and marigold extracts and application of active edible coatings to extend the postharvest storage life of guava.

This study investigated the physical, mechanical, optical, thermal, and biochemical characters of carboxy methyl cellulose (CMC) and gum arabic (GA) based active edible films activated with rose leaf (RL) and marigold petal (MP) extracts, their impact on the shelf life and postharvest quality of guava fruits when stored under cold condition (10 ± 1 °C). Physical, mechanical and optical characteristics were enhanced by the incorporation of plant extracts. Water solubility of films decreased upon addition of plant extracts, with MP extract films showing the lowest solubility.