The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Mar. 18, 2005
Applicants:
Harald Groeger, Hanau, DE;
Helge Werner, Bruchkoebel, DE;
Josef Altenbuchner, Nutringen, DE;
Anne Menzel, Sindelfingen, DE;
Werner Hummel, Titz, DE;
Inventors:
Harald Groeger, Hanau, DE;
Helge Werner, Bruchkoebel, DE;
Josef Altenbuchner, Nutringen, DE;
Anne Menzel, Sindelfingen, DE;
Werner Hummel, Titz, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C12P 13/04 (2006.01); A01N 63/00 (2006.01); A61K 38/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for preparing, in particular, enantiomerically enriched L-α-amino acids, in particular those of the general formula (I). In this connection, the process according to the invention uses 2-ketocarboxylic acids which are converted into the desired products using a whole-cell catalyst which comprises an amino acid dehydrogenase and a cofactor-regenerating enzyme.