Improved Microorganism Variants Having Ehtanol Producing Ability Using Glycerol or Crude Glycerol and Method for Producing Ethanol Using the Same

摘要

The present invention relates to a mutant microorganism having enhanced ethanol production ability by using glycerol or waste glycerol as a carbon source, and a process for producing ethanol using the same. More particularly, the present invention relates to a process for producing ethanol by increasing the enzyme activity of alcohol dehydrogenase II (AdhII) In a mutant microorganism having ethanol-solubility from glycerol or waste glycerol in which the enzyme activity of 1,3-propanediol oxidoreductase (DhaT) is reduced, lactate dehydrogenase A A novel mutation that overexpresses a gene coding for Lactate dehydrogenase A (LdhA) or a gene encoding pyruvate dehydrogenase (Pdc) and aldehyde dehydrogenase II (Aldh II) And a process for producing ethanol using the microorganism.