| 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, such as a disruption product of the culture of the microalga, an extract or a fractionation product of the disruption product, containing a mixture of organic substances produced by the microalga, or a hydrolysate of the disruption product, the extract or the fractionation product, especially a saccarification product of starches or a hydrolysate of fats and oils as the processed product, to produce and accumulate the L-amino acid in culture, and collecting the L-amino acid from the culture. |