Method for producing a proteinaceous product by digestion of raw animal parts

Abstract From the Canadian patent

A particulate proteinaceous product and methods for producing the same from waste raw animal parts are disclosed. The product is dry to the touch, is compressible into pellets or cakes and , comprises about 45 to 65 w/w percent partially hydrolyzed non-denatured animal protein, about 20-35 w/w percent oil derived from the animal parts, about 10-15 w/w percent moisture and about 0-7 w/w percent ash. The product also has less objectionable odor less propensity to oxidize, and higher nutritional value than existing products. The method comprises a mulling stage wherein the raw animal parts are reduced to a ground condition; a hydrolyzing stage wherein proteins in the ground animal parts are …