U.S. Institute developed a new type of packaging film material

A U.S. institute has successfully developed a method for converting the processed potatoes into glucose syrup and then fermenting it with bacteria to produce a lactic acid fermentation liquor. The lactic acid fermentation liquor is separated by electrodialysis and heated to evaporate water to obtain a polylactic acid that can be made into a thin film and can be used as a preservation bag. And instead of polyethylene and waterproof wax packaging materials.

The American company LLC produces polylactic acid by hydrolyzing corn starch into glucose and then anaerobic fermentation with lactobacillus. During the fermentation process, the lactate is neutralized to produce lactic acid. After purification, the fermentation broth is purified by electrodialysis to achieve a purity of 99.5. % of L-lactic acid.