biotech procedure for the extraction of pure protein free starch of peas

摘要

The invention relates to the biotechnological isolation of pure, protein-free starch from peas with a high content of starch, in particular of amylose-rich starch, where homogenised peas are incubated in aqueous medium in the range of about 20-50 DEG C with water-soluble amylase-free protease until the proteins have dissolved, and the latter are subsequently separated from the starch which is in the form of grains. The starch obtained in this way is washed with water and dried. The amylose-rich starch obtainable according to the invention can be used as basic chemical, for example for the preparation of easily degradable, environmentally friendly polymers, and the solution containing protein hydrolysate which is obtained in the process can be used as nitrogen source in fermentations, as animal feed etc.