Patent · US Expired

Fermentative preparation of amino acids

US6133000A · kind A · utility

6Cited by

3References

12Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Walter Pfefferle · Bodenwerder, DE
Hermann Lotter · Großkrotzenburg, DE
Heinz Friedrich · Hanau, DE
Wolfgang Degener · Bielefeld, DE

Key dates

Filing date	Jun 1, 1998
Grant date	Oct 17, 2000
Priority date	—
Expiry date	Jun 1, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12P13/08
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A process is disclosed for the fermentative preparation of amino acids, in which an L-lysine producing bacterial strain of the species Corynebacterium glutamicum is cultivated in a nutrient medium and the amino acids can be isolated from the culture medium at the end of fermentation. After the vigorous growth phase, the bacterial culture has at its disposal a smaller quantity of assimilable carbon source than it could metabolize on the basis of the structure of the strain and the quanitity of other necessary supplements provided in the nutrient medium.

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