Patent · US Active

Method for production of natural L-cysteine by fermentation

US8802399B2 · kind B2 · utility

5Cited by

3References

12Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Anneliese Reutter-Maier · Kirchseeon, DE
Markus Brunner · Bessenbach, DE
Tobias Dassler · Hersbruck, DE

Key dates

Filing date	Jun 25, 2012
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Jun 25, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12P17/14
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A method for the production of natural L-cysteine by fermentation in a production fermenter in which a microorganism strain is cultured in a fermentation medium, characterized in that the fraction of the compounds L-cysteine, L-cystine and thiazolidine in the fermentation medium is controlled in a targeted manner by an iron concentration of a maximum of 8 mg/l in the fermentation medium.

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