Polysaccharide-cutin edible coatings for fresh produce preservation

Overview

Polysaccharide-Cutin edible coatings present a groundbreaking approach to prolonging the shelf life of fresh produce. By combining natural polysaccharides with cutin derived from tomato peel waste, this solution offers a sustainable method to reduce dehydration and microbial spoilage. The coatings maintain the sensory properties of produce, ensuring taste and texture remain appealing. This innovation not only extends the usability of fresh produce but also adds value by utilizing food processing by-products, contributing to a circular economy.

Technical specifications

Key features:

• Polysaccharide matrix: Utilizes pectin and alginate for biodegradable and film-forming properties.
• Cutin integration: Enhances hydrophobicity, providing superior water vapor resistance and microbial inhibition.
• Surface energy optimization: Ensures strong adhesion to produce surfaces using the Lifshitz-van der Waals/Lewis acid-base model.
• Functional barrier properties: Optimized for reducing weight loss and microbial spoilage, while maintaining produce sensory attributes.
• Versatile applications: Suitable for high-priority produce like berries, leafy greens, and apple slices.

Technology readiness level

Currently at Technology Readiness Level 5, these coatings have been validated in laboratory settings with ongoing assessments for water vapor permeability, microbial inhibition, and sensory evaluation. The next stage involves testing under simulated storage conditions and expanding to a broader range of produce.