The proteolytic enzyme found in fastric juice of infants which hepls in digestion of milk protein is

Options

A. Renin
B. Rennin
C. Salivary amylase
D. Lysozyme

Answer

### Step-by-Step Solution:

1. **Identify the Question**: The question asks for the proteolytic enzyme found in the gastric juice of infants that aids in the digestion of milk protein.

2. **Understand the Options**: The options provided are:
- Renin
- Salivary amylase
- Lysozyme

3. **Analyze Each Option**:
- **Renin**: This is a hormone secreted by the kidneys that regulates blood pressure. It is not related to digestion.
- **Salivary Amylase**: This enzyme is found in saliva and is responsible for breaking down carbohydrates, not proteins.
- **Lysozyme**: This enzyme is present in saliva and has antibacterial properties, but it does not digest proteins.

4. **Identify the Correct Enzyme**: The enzyme that is specifically mentioned as a proteolytic enzyme present in the gastric juice of infants is **Rennin** (also known as rennet). This enzyme helps in the digestion of milk protein, particularly casein, which is the main protein found in milk.

5. **Conclusion**: Therefore, the correct answer to the question is **Rennin**.

### Final Answer:
The proteolytic enzyme found in the gastric juice of infants that helps in the digestion of milk protein is **Rennin**.

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