Select the incorrect match.

Options

A. Citric acid – Aspergillus niger
B. Streptokinase - Streptococcus
C. Butyric acid – Clostridium acetobutylicum
D. Cyclosporin-A – Monascus purpureus

Answer

To solve the question of selecting the incorrect match, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Option 1: Citric Acid and Aspergillus**
- Citric acid is produced by the fungus Aspergillus niger.
- This match is **correct**.

2. **Option 2: Streptokinase and Streptococcus**
- Streptokinase is an enzyme produced by the bacterium Streptococcus.
- This match is **correct**.

3. **Option 3: Butyric Acid and Clostridium Acidibutilica**
- Butyric acid is produced by the bacterium Clostridium acidibutylicum.
- This match is **correct**.

4. **Option 4: Cyclosporine A and Monascus Purpureus**
- Cyclosporine A is actually produced by Trichoderma polyspora, not Monascus purpureus.
- Monascus purpureus is known for producing statins, which are cholesterol-lowering agents.
- Therefore, this match is **incorrect**.

### Conclusion:
The incorrect match is **Option 4: Cyclosporine A is produced by Monascus Purpureus**.

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