Method for making water-soluble elastin hydrolyzates

US4179333A · kind A · utility

Assignees

• Firma Carl Freudenberg · DE
• Rohm Co., Ltd. · JP

Inventors

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

Key dates

• Filing date: Feb 9, 1978
• Grant date: Dec 18, 1979
• Expiry date: Feb 9, 1998

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A water-soluble hydrolyzate of elastin, suitable for cosmetological use, is disclosed as is a method for making a water-soluble elastin hydrolyzate from starting materials containing elastin which comprises first subjecting said starting material to acid treatment at a pH below about 4 and at an elevated temperature and then enzymatically degrading the acid-treated material, while in comminuted form, in an aqueous bath in the presence of urea, with an alkaline proteinase having an activity optimum in a range between pH 9 and pH 13, the initial pH of the enzymatic treatment being within the pH range optimum for the enzyme employed.