Univalor, Montréal, QC, CA
We offer a discontinuous chitosan based film coating that provides naturally antibacterial proprieties to food packaging and increase the shelf life of food up to one week. Chitosan is a non-toxic polysaccharide from marine origin that has great potential to be used as antibacterial biomaterial given its bioactivity. Chitosan is considered as a “Generally recognized as safe” (GRAS) food additive by the US Food and Drug Administration (FDA), wherewith can be considered as candidate for food related applications. Nevertheless, the main drawback of chitosan is its poor processability. We have overcome this issue, by preparing chitosan film through the solution casting/solvent evaporation approach. This method requires dissolving chitosan solutions in aqueous acidic solutions (based on acids such as acetic, lactic, citric, etc.), pouring of the solution in a very thin layer followed by solvent evaporation. Chitosan film are then deposited on top of a previously surface treated conventional packaging. This process allows the chitosan coating to be directly integrated to a multi-layer packaging fabrication process without undergoing heavy manufacturing modifications. Indeed, the process is designed to be performed discontinuously to target an optimum sealing of the activated packaging films.
Primary Application Area: Materials, Chemical
Technology Development Status: Prototype
Technology Readiness Level: TRL 3
Organization Type: Academic/Gov Lab
Showcase Booth #: 524
GOVT/EXTERNAL FUNDING SOURCES