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:
Apr. 06, 1993
Filed:
May. 01, 1987
Applicant:
Inventors:
Christian Wandrey, Julich, DE;
Rolf Wichmann, Julich, DE;
Ulrich Groeger, Bielefeld, DE;
Manfred Kircher, Bielefeld, DE;
Wolfgang Leuchtenberger, Bruchkobel, DE;
Eberhard Breuker, Detmold, DE;
Assignee:
Degussa AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12P / ;
U.S. Cl.
CPC ...
435106 ; 435116 ; 435840 ; 435843 ;
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.