Question

The microbe used for the commercial production of ethanol is

• A. Clostridium butylicum, a bacterium
• B. Aspergillus niger, a fungus
• C. Lactobacillus, a bacterium
• D. Saccharomyces cerevisiae, a fungus

Answer 1

Answer: (D)

The microbe used for the commercial production of ethanol is Saccharomyces cerevisiae. It is a fungus. It is also known as 'yeast'. Clostridium butylicum, Aspergillus niger and Lactobacillus are acid producers, responsible for the production of butyric acid, citric acid and lactic acid, respectively.