Multiple choice

Which one of the following microbes is used to produce citric acid?

  1. Aspergillus niger

  2. Acetobacter aceti

  3. Clostridium butylicum

  4. Lactobacillus

  5. Yeast
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A Correct answer
Explanation

Aspergillus niger, a fungus is used for the commercial and industrial production of citric acid.

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