US 8,728,772 B2 · Method for producing an L-amino acid

Abstract

An L-amino acid is produced by culturing a bacterium having an L-amino acid-producing ability in a medium containing a processed product of a microalga which promotes production and accumulation of the L-amino acid by the bacterium. The process product is produced by disrupting the culture of the microalga, and/or extracting the culture of the microalga, or fractionating the culture of the microalga or the disrupted culture. The processed product contains a mixture of organic substances produced by the microalga, a hydrolysate of the disrupted microalga culture, and/or an extract or fractionation product of the microalga culture. The processed product can also contain a saccarification product of starch or a hydrolysate of fats and oils. The bacterium is cultured to produce and accumulate the L-amino acid in culture, and the L-amino acid is collected from the culture.

Claims34

Dependent claims

A method for producing an L-amino acid comprising:

A) culturing a bacterium able to produce an L-amino acid in a medium comprising a processed product of a microalga, and
B) collecting the L-amino acid from the medium or the bacterium;
wherein the processed product in the medium during said culturing increases production and accumulation of the L-amino acid by the bacterium as compared to said culturing of the bacterium in a medium without the processed product,
wherein the processed product is selected from the group consisting of:
(1) a disruption product of a culture of the microalga,
(2) an extract or a fractionation product of a disruption product of a culture of the microalga comprising a mixture of organic substances, and
(3) combinations thereof.

4 more elements

Dependencies are inferred from the claim text.

Method for producing an L-amino acid

Life of this patent

Method for producing an L-amino acid

Life of this patent

Abstract

Claims34