Rennin employed in cheese industry is

Options

A. Inhibitor
B. Alkaloid
C. Enzyme
D. Vitamin

Answer

To answer the question "Rennin employed in cheese industry is," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Substance**: The question refers to "rennin," which is a substance used in the cheese industry.

2. **Understand What Rennin Is**: Rennin is also known as chymosin. It is important to recognize its alternative name for better understanding.

3. **Determine the Function of Rennin**: Rennin is a protein-digesting enzyme. Its primary function is to curdle milk.

4. **Explain the Process of Curdling**: Rennin converts caseinogen (a soluble protein in milk) into insoluble casein, which is essential for cheese production.

5. **Source of Rennin**: Rennin is found in the fourth stomach of cud-chewing animals, such as cows. This is where it plays a crucial role in digesting milk.

6. **Comparison with Other Enzymes**: In animals that do not have rennin, such as humans, pepsin serves a similar function in curdling milk.

7. **Commercial Form of Rennin**: The commercial form of rennin used in the cheese industry is known as rennet.

8. **Select the Correct Option**: Given the options (inhibitor, alkaloid, enzyme, vitamin), we conclude that rennin is an enzyme.

### Final Answer:
Rennin employed in the cheese industry is an **enzyme**.

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