| abstract |
[Problem] To provide a yeast having an improved lactic acid production capacity and a method for producing lactic acid using the yeast in fermentative production of lactic acid using yeast introduced with lactate dehydrogenase. A yeast in which pyruvate decarboxylase activity changes in a temperature-dependent manner due to mutations such as deletion, substitution, insertion, etc. of a part of DNA encoding pyruvate decarboxylase, and lactate dehydrogenase Yeast incorporating a gene to be encoded is provided. The present invention also provides a method for producing lactic acid, comprising culturing the yeast in the presence of a carbohydrate and collecting the yeast from the culture. [Selection figure] None |