Method for the fermentative production of L-amino acids from .alpha.-keto acids

US5200326A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Christian Wandrey · Jülich, DE
• Rolf Wichmann · Jülich, DE
• Ulrich Groeger · Aschaffenburg, DE
• Manfred Kircher · Bielefeld, DE
• Wolfgang Leuchtenberger
• Eberhard Breuker · Detmold, DE

Key dates

• Filing date: May 1, 1987
• Grant date: Apr 6, 1993
• Expiry date: May 1, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/843
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The invention is directed to a method of producing L-amino acids from .alpha.-ketocarboxylic acids by means of continuous fermentation with the aid of glutamate producing bacteria with biomass retention in which the cells are separated by microfiltration and/or centrifugal separators.