Protein and polysaccharide edible coatings: A promising approach for fruits preservation - recent advances
2025
Dong My Lieu | Thuy Thi Kim Dang | Huong Thuy Nguyen
Biodegradable packaging, especially edible coatings (EC) for fruit preservation, is a sustainable and eco-friendly approach. ECs, such as polysaccharides and proteins, are widely used in fruit preservation, with a preference for polysaccharides in coating studies. Fundamental EC properties include barrier properties, tensile strength, elongation at break, and UV blocking. Extra materials such as antimicrobial agents, antioxidants, anti-browning agents, and antagonistic microorganisms enhance EC benefits. ECs impact fruit metabolism by reducing malondialdehyde production and enhancing the activities of key enzymes. However, extra materials at high concentrations affect the bonding network of the EC and weaken its structure. Therefore, selecting an appropriate concentration of extra materials is crucial to ensure adequate preservation and safety without affecting sensory properties. Combining coating materials and extra materials to reduce fruit metabolism, maintain fruit quality, inhibit damage pathogens, prevent browning, and provide antioxidants would be an excellent way to promote the green potential of fruit preservation approaches.
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