Which of the following microorganisms is used for production of citric acid in industries?
Correct answer: A. Aspergillus niger
- A. Aspergillus niger
- B. Rhizopus nigricans
- C. Lactobacillus bulgaris
- D. Penicillium citrinum
Explanation
Citric acid is obtained through the fermentation carried out by Aspergillus niger on sugary syrups. Citric acid is employed in dyeing, engraving, medicines, inks, flavoring, and preservation of food and candies.
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