Process of producing acid stable protease

US4062732A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Rudolf Lehmann · Leichlingen, DE
• Hans Pfeiffer · Haan, DE
• Joachim Schindler
• Wolfgang Schreiber · Stuttgart, DE

Key dates

• Filing date: Jun 14, 1976
• Grant date: Dec 13, 1977
• Expiry date: Jun 14, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/939
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

An acid stable protease whose pH range of 50% of maximum activity is between pH 2.5 and 6.5, produced by culturing a fungus strain of the species Rhizopus rhizopodiformis CBS 227.75 under aerobic conditions in a nutrient medium containing assimilable carbon and nitrogen sources, at a pH between 3 and 7 and at a temperature between 25.degree. C and 50.degree. C, and separating the enzyme produced; as well as the method of production, its use as a foodstuff additive and foodstuffs containing the same.