Biomedical engineers at Tufts University in the United States have invented a cling film-like biodegradable food wrap, made from silk, which can preserve fruit and other produce for more than a week. The material is viewed as a potential alternative to plastic packaging.
The technique coats food with an almost invisible layer of a protein called fibroin, which is regularly found in silk – one of the world’s toughest materials. The coating was tested on strawberries and bananas preserving both kinds of fruit by an additional week compared with not receiving the preservation technique.
Source (and full story): Scientists invent silk food wrap that’s biodegradable and could replace plastic cling film
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