Novel lipid edible coatings for postharvest quality improvement
Tailored lipid edible coatings including wax esters, sucrose esters, and mono/di-acylglycerols designed to enhance storability and postharvest quality of horticultural products. Developed through biocatalytic synthesis with customizable fatty acyl compositions to meet the specific needs of different fruits and vegetables.
Overview
This research program focuses on developing a collection of novel lipid edible coatings designed to improve the postharvest quality and storability of horticultural products such as bell peppers and tomatoes. The coatings are formulated as wax esters, sucrose esters, and mono- and di-acylglycerols, each with customizable fatty acyl compositions. By tailoring the lipid composition to the specific needs of different produce types, these coatings offer a more targeted approach compared to conventional one-size-fits-all edible coatings. The goal is to provide produce growers, packers, and distributors with optimized coating materials that reduce moisture loss, slow deterioration, and extend marketable shelf life.
Technical specifications
Coating types:
- Wax esters with varied fatty acyl composition
- Sucrose esters with varied fatty acyl composition
- Mono- and di-acylglycerols with varied fatty acyl composition
Synthesis approach:
- Biocatalytic synthesis of designer lipids, leveraging expertise in plant lipid metabolism
- Lipid emulsions prepared from synthesized coatings and applied to produce via dipping
Validation methods:
- Periodic measurement of physiological and biochemical parameters during storage
- Comprehensive lipid class and composition analysis to correlate coating structure with performance outcomes
- Testing on bell pepper and tomato as representative horticultural crops
Technology readiness level
The research is in an early-to-mid stage of development. The team has established expertise in plant lipid metabolism and biocatalytic synthesis of designer lipids. Future validation will involve synthesizing the lipid collection, preparing emulsions, applying coatings to representative produce, and measuring storage performance over time. The technology builds on a foundation of existing commercial lipid edible coatings, positioning it for potential further development toward tailored commercial applications.
About University of Guelph
The University of Guelph is a comprehensive, mid-sized public research university in Guelph, Ontario. Industry partners engage through an on-campus research park and the Ontario Veterinary College’s teaching hospitals, which enable product evaluation and clinical translation. The university’s Arboretum and the nearby Agriculture and Agri-Food Canada Guelph Research and Development Centre offer living laboratories and federal linkages that support collaborative R&D. Research is backed by competitive federal funding and strong provincial support via the Ontario Agri‑Food Innovation Alliance. The Research Innovation Office serves as the university’s technology transfer and industry liaison hub, supporting IP, licensing, and co‑funded partnerships.
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