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US 8,137,938 B2Granted
Method for producing an L-amino acid
AssigneeAjinomoto Co., Inc.
InventorsYuri Nagai, Yoshihiro Usuda
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Abstract
An L-amino acid is produced by culturing a bacterium belonging to the family Enterobacteriaceae, which is able to produce the L-amino acid, and is modified so that the activity of ribonuclease G is decreased in a medium containing glycerol as the carbon source, and collecting the L-amino acid from the culture.
Claims7
A method for producing an L-amino acid comprising:
- (A) culturing a bacterium in a medium containing glycerol, wherein said bacterium belongs to the family Enterobacteriaceae and is able to produce the L-amino acid, and
- (B) collecting the L-amino acid from the medium,
- wherein the bacterium has been modified so that the activity of ribonuclease G is decreased,
- wherein said L-amino acid is L-lysine or L-threonine, and
- wherein the rng gene coding for said ribonuclease G is inactivated.
2 more elements
Dependencies are inferred from the claim text.