Singapore-based researches are in the process of developing a material comparable to plastic wrap that is biodegradable, anti-bacterial, and free from chemical additives. While they are still in the early stages of development, if everything pans out, this could be a promising development in the world of food packaging.
Due in part to an increasing consumer demand for environmentally-friendly packaging, researchers developed the new material–chitosan–by deriving it from the exoskeletons of shellfish, making it a natural and biodegradable polymer. In addition to its biodegradable benefits, the cling wrap is also non-toxic, and even naturally contains some antimicrobial and antifungal properties.To enhance the antibacterial properties of chitosan, the film was fortified with Grapefruit Seed Extract (GFSE), a natural antioxidant that “…possesses strong antiseptic, germicidal, antibacterial, fungicidal, and antiviral properties.” The team researched the combined effects by varying the amounts of GFSE present, and early testing found that average shelf life was increased by about two weeks as compared to standard plastic wrap.
If the project continues as the researchers hope, this could improve food safety, and consequently, reduce food waste. According to the World Resources Institute, nearly a quarter of all food calories produced is wasted. That being said, here’s to hoping their research ends with success!
Find out more about their research from their study, ‘Functional chitosan-based grapefruit seed extract composite films for applications in food packaging technology.’
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