Biopolymer-based nanogels for fresh produce preservation
Innovative biopolymer-based nanogels enhance fresh produce shelf life by regulating moisture and delivering antimicrobial agents. Ideal for reducing spoilage in storage and packaging applications.
Overview
Biopolymer-based nanogels represent a cutting-edge approach to preserving fresh produce by combining the properties of nanoparticles and hydrogels. These nanogels, constructed from biocompatible polymers such as starch and alginate, are designed to be loaded with bioactive phenolic compounds (PC) which serve dual functions: regulating moisture migration and delivering antimicrobial agents. By applying these nanogels to the surface of fresh produce, they can control moisture loss via osmotic dehydration and extend shelf life while maintaining quality.
Technical specifications
Key features:
- Size and Composition: Nanogels are sub-micron sized (10-100 nm) and are made from tunable biopolymers.
- Bioactive Loading: Phenolic compounds encapsulated for antimicrobial effectiveness and reduced water activity.
- Application Methods: Coating techniques include spraying and dipping, followed by mild drying and refrigeration.
- Characterization: Methods include measuring swelling capacity, moisture content, particle size, zeta potential, and use of microscopic techniques like TEM and AFM.
Technology readiness level
This technology is at TRL 4, indicating it has been validated in the laboratory. Future steps involve refining nanogel formulations and application procedures for specific produce types, followed by quality assessments including microbial quality and texture analysis.
About McGill University
McGill University is a comprehensive public research university in Montréal, Québec, known for an international community and a research‑intensive culture. Faculty and industry collaborate through shared core facilities and co‑located labs across downtown and hospital sites, with integration into a major hospital system enabling clinical research and translation. Proximity to Montréal’s established industry clusters and a vibrant innovation district give companies access to talent, pilots, and testbeds. Research is supported by Canada’s Tri‑Agency and the Canada Foundation for Innovation, alongside provincial and philanthropic sources. A dedicated technology transfer office streamlines contracting and IP, supports licensing and sponsored research, and connects partners to startups and entrepreneurship resources.
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