Renewable Material from Nature

Single-use food wrapping has created a rubbish problem that now pollutes every corner of the world. In an effort to address this kind of pollution, researchers at the Georgia Institute of Technology have developed an environmentally-friendly alternative that could replace flexible plastic film packaging. The new renewable and biodegradable material is a flexible film made from multiple layers of chitin from crab shells and cellulose from trees. Chitin and cellulose, whose chemical structure are incredibly similar, are the most abundant natural biopolymers on the planet. This  material has up to a 67 percent reduction in oxygen permeability over some forms of PET, which means it could in theory keep foods fresher longer

ZME Science - July 2018

 

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