Enzymatic treatment of proteinaceous animal waste products

US4220723A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

• Zdenek Eckmayer · Weinheim, DE
• Alexander Berg · Mannheim, DE
• Rolf Monsheimer · Darmstadt, DE
• Ernst Pfleiderer · Weiterstadt, DE

Key dates

• Filing date: Dec 19, 1978
• Grant date: Sep 2, 1980
• Expiry date: Dec 19, 1998

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A23J3/345
• WIPO field: Food chemistry
• WIPO sector: Chemistry

Abstract

A method for converting blood, animal parts, bone waste, or meat scraps into useful products, which method comprises hydrolyzing such a substrate with a proteinase, preferably in the presence of urea, in an aqueous hydrolysis medium at a pH in a region in which the proteinase displays sufficient activity, subsequently inactivating the enzyme, and working up the hydrolyzate.