Modern detergents contain enzyme preparations of

Options

A. acidophiles
B. alkaliphiles
C. thermoacidophliles
D. thermophiles

Explanation

To solve the question regarding which enzyme preparations modern detergents contain, we can follow these steps:

### Step 1: Understand the Types of Enzymes
- Enzymes can be classified based on their optimal pH and temperature conditions. The options provided are:
- Acidophiles: Active at pH below 7 (acidic conditions).
- Alkaliphiles: Active at pH above 7 (basic conditions).
- Thermoacidophiles: Active at high temperatures and acidic pH.
- Thermophiles: Active at high temperatures.

### Step 2: Identify the Enzymes Used in Detergents
- Modern detergents typically contain enzymes such as proteases and cellulases.
- Proteases break down protein stains.
- Cellulases break down cellulose stains.

### Step 3: Determine the pH Range for Detergent Enzymes
- The enzymes used in modern detergents work best in a basic pH range, typically between 8 and 10. This indicates that they are designed to function in alkaline conditions.

### Step 4: Match the Enzyme Type to the Options
- Since the enzymes in modern detergents are active in a basic pH range, they correspond to the definition of alkaliphiles.

### Conclusion
- Therefore, the correct answer is **Alkaliphiles (Option B)**, as these enzymes are specifically suited for the conditions found in modern detergents.

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