Method for treating raw materials containing collagen

US4220724A · kind A · utility

Assignee

• Rohm Co., Ltd. · JP

Inventors

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

Key dates

• Filing date: Mar 13, 1979
• Grant date: Sep 2, 1980
• Expiry date: Mar 13, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08H1/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method for conditioning a collagen-containing raw material to render it adaptable to hot-water extraction of collagen and collagen degradation products therefrom, which comprises incubating said raw material in an aqueous bath containing a neutral or alkaline protease at a pH between 6.5 and 13 in the presence of a member selected from the group consisting of urea, guanidine, or an acid addition salt of quanidine.