A new biodegradable film made of milk protein has the potential to keep food fresher and replace plastic wraps, according to researchers from the U.S. Department of Agriculture. She explained that while plastic wrap can stretch as much as 100 per cent, the casein film has about 20 per cent stretch. Casein, a milk protein, is being adapted as a film that could be used to replace plastic wrap. Excess milk powderTomasula "was listening to producers who were asking for something to do with that milk," Bonnaillie said. As an oxygen barrier, the casein film is 250 times better than plastic wrap, Bonnaillie said.

Source: CBC News August 21, 2016 09:00 UTC