Which of the following enzymes is not used in making detergent?

Options

A. Peptidase
B. Cellulase
C. Amylase
D. Lipase

Answer

To determine which enzyme is not used in making detergents, we can analyze the functions of the enzymes listed in the question: peptidase, cellulase, mylase, and lipase.

### Step-by-Step Solution:

1. **Understand the Function of Each Enzyme**:
- **Peptidase**: This enzyme breaks down proteins into smaller peptides or amino acids. It is primarily involved in protein digestion.
- **Cellulase**: This enzyme breaks down cellulose, which is a component of plant cell walls. It is used in detergents to help remove stains from fabrics that contain cellulose.
- **Mylase**: This enzyme (likely a misspelling of "maltase" or "amylase") breaks down starches into sugars. Amylase is often used in detergents to help remove starchy stains.
- **Lipase**: This enzyme breaks down fats and oils into fatty acids and glycerol. It is commonly used in detergents to remove greasy stains.

2. **Identify the Enzyme Not Used in Detergents**:
- Peptidase is primarily used for protein digestion and is not typically used in detergents because it could damage protein-based fabrics.
- Cellulase, amylase (or mylase), and lipase are all used in detergents for their ability to break down specific stains.

3. **Conclusion**:
- The enzyme that is not used in making detergents is **Peptidase**.

### Final Answer:
Peptidase is the enzyme that is not used in making detergents.

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