| 摘要 |
Provided is a method for producing lactic acid which does not require neutralization and crude purification associated therewith both of which give a high load to the environment. A method for producing lactic acid, which comprises subjecting glucose to lactic acid fermentation by using a fission yeast having a lactic acid fermentation ability and recovering lactic acid produced thereby, characterized in that a fermentation liquor created from an aqueous glucose solution by lactic acid fermentation is replaced with an aqueous glucose solution having a potassium ion concentration of at least 400 ppm to continue the lactic acid fermentation, and the replacement of the fermentation liquor with the potassium ion-containing aqueous glucose solution is performed at least once. |
