Kluyveromyces marxianus deficient in the ethanol fermentation and use thereof

摘要

the present invention is to prevent the ethanol fermentation pyruvate decarboxylase was inactivated Krebs Tree voice yeast Cluj Vero Mai Seth just Shia valerian ( Kluyveromyces marxianus ) strain and a yeast strain that produces a variety of organic acids by introducing a number of exogenous gene in this strain It relates. The invention also relates to a method of producing lactic acid by culturing the above strain. Is pyruvate decarboxylase activity is inactivated mutant strain of the present invention relates to a method to introduce exogenous genes into the strain does not produce ethanol lactic acid production to produce an organic acid efficiently with a strain capable of producing organic acids. ;