Question

Which of the following organic acids can be produced on commercial scale by Aspergillus niger?

• A. Butyric acid
• B. Citric acid
• C. Lactic acid
• D. Acetic acid

Hint:

Think of "Aspergillus" as the fungus that makes your citrus-flavored sodas possible!

Answer 1

The Correct Option is B

Step 1: *Aspergillus niger* is a fungus (specifically a black mold).
Step 2: It is widely used in the food and beverage industry for the large-scale production of Citric acid.
Step 3: For comparison: *Acetobacter aceti* produces Acetic acid, *Lactobacillus* produces Lactic acid, and *Clostridium butylicum* produces Butyric acid.