Throughout history, humans have harnessed the power of microbial fermentation to create tasty food, such as using S. cerevisiae to make beer and wine. Describe another microorganism whose fermentation process we use to create food or beverage. Include the full name and describe the fermentation process. What is the reactant and the product of the fermentation process? Remember, this is a fermentation question - consider the fate of pyruvate and NAD and the final product produced using fermentation. The answer should be at least 2 full paragraphs. You may not use S. cerevisiae in your answer.