Patent · US Expired

Method for the preparation of L-amino acids from D-amino acids

US7217544B2 · kind B2 · utility

13Cited by

2References

15Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Werner Hummel · Titz, DE
Birgit Geueke · Aachen, DE
Steffen Osswald · Rodenbach, DE
Christoph Weckbecker · Gelnhausen, DE
Klaus Huthmacher · Gelnhausen, DE

Key dates

Filing date	Feb 14, 2005
Grant date	May 15, 2007
Priority date	—
Expiry date	Feb 14, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12P13/12
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The invention relates to recombinant microorganisms which, in comparison to the starting organism, have a higher concentration or activity of a D-amino acid oxidase, of an L-amino acid dehydrogenase, of an NADH cosubstrate regenerating enzyme and, if necessary, of a catalase. The invention also includes methods for preparing L-amino acids from D-amino acids using of these microorganisms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.