Method for Producing L-Amino Acids

摘要

A method for producing an L-amino acid is provided. An L-amino acid is produced by culturing a bacterium belonging to the family Enterobacteriaceae and having an L-amino acid-producing ability, wherein the bacterium has been modified so that the activity of aconitase is increased, or the activities of aconitase and acetaldehyde dehydrogenase are increased, in a medium, and collecting the L-amino acid from the medium or cells of the bacterium.

主权项

1. A method for producing an L-amino acid, the method comprising:
A) culturing an Enterobacteriaceae bacterium having an L-amino acid-producing ability in a medium comprising ethanol, resulting in production and accumulation of the L-amino acid in the medium or cells of the bacterium, and B) collecting the L-amino acid from the medium or the cells; wherein the bacterium has been modified to increase the activity of aconitase, and wherein the aconitase is an AcnB protein.