why are both types of fermentation are important?

The two main types of fermentation are alcoholic fermentation and lactic acid fermentation. The two main types of fermentation are:

1) Alcoholic fermentation - Conversion of pyruvate to carbon dioxide and ethyl alcohol
2) Lactic acid fermentation - The conversion of pyruvate to lactate with no release of carbon dioxide.


In alcoholic fermentation, the major products are alcohol and carbon dioxide. In lactic acid fermentation, the major product is lactic acid.

For both types of fermentation, there is a side product: NAD+ which is recycled back to glycolysis so that small amounts of ATP can continue to be produced in the absence of oxygen.