L- L- METHOD FOR PRODUCTION OF L-CYSTEINE OR L-CYSTEINE DERIVATIVES BY FERMENTATION

摘要

The present invention relates to a method for producing L-cysteine or L-cysteine derivatives by microbial fermentation and microorganisms suitable for the method.;Microbial strains suitable for the fermentation production of L-cysteine or L-cysteine derivatives constitute deregulated cysteine metabolism not dependent on fluctuating cysB activity.;In addition, the microbial strain is characterized by increased cysB activity, and the cysB activity mainly constitutes a wild type cysB regulation pattern.