Question

For commercial and industrial production of citric acid, which one of the following microbes is used?

Options

• Aspergillus niger

• Lactobacillus sp.

• Clostridium butylicum

• Saccharomyces cerevisiae

Answer 1

Aspergillus niger

Explanation:

Some compounds, such as organic acids, alcohols, and enzymes, are produced commercially and industrially by microbes. Aspergillus niger, a fungus that makes citric acid, Clostridium butylicum, a bacterium that creates butyric acid, and Lactobacillus, a bacterium that produces lactic acid, are examples of acid producers.