Match List-I with List-II
| List-I | List-II |
| Producer | Acid |
| (A) Clostridium butylicum | (I) Lactic acid |
| (B) Aspergillus niger | (II) Butyric acid |
| (C) Acetobacter aceti | (III) Citric acid |
| (D) Lactobacillus | (IV) Acetic acid |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) - (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
| List-I | List-II |
| Producer | Acid |
| (A) Clostridium butylicum | (II) Butyric acid |
| (B) Aspergillus niger | (III) Citric acid |
| (C) Acetobacter aceti | (IV) Acetic acid |
| (D) Lactobacillus | (I) Lactic acid |
Microbes are used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes. Examples of acid producers are Aspergillus niger (a fungus) of citric acid, Acetobacter aceti (a bacterium) of acetic acid; Clostridium butylicum (a bacterium) of butyric acid and Lactobacillus (a bacterium) of lactic acid. Yeast (Saccharomyces cerevisiae) is used for commercial production of ethanol.