abstract |
A high lactic acid expression system that is preferable for lactic acid production in yeast is constructed. There is provided a lactic acid-producing yeast having a reduced pyruvate decarboxylase activity and an alcohol dehydrogenase activity and capable of expressing a DNA encoding a protein having a lactate dehydrogenase activity. The In this organic acid-producing yeast, it is preferable that the pyruvate decarboxylase gene is disrupted, and further, it is preferable that the alcohol dehydrogenase gene is disrupted. [Selection] Figure 1 |