Continous addition of sugars in 'fed batch' fermentation is done to

Options

A. Degrade sewage
B. Produce methane
C. Obtain antibiotics
D. Purify enzymes

Answer

**Step-by-Step Solution:**

1. **Understanding Fed-Batch Fermentation**:
- Fed-batch fermentation is a technique used in bioprocessing where substrates (nutrients) are added to the bioreactor in a controlled manner over time. This allows for better control of the growth conditions and product formation.

2. **Role of Sugars in Fermentation**:
- Sugars serve as a primary source of carbon and energy for microorganisms in the fermentation process. They are essential for the growth and metabolism of the microorganisms.

3. **Continuous Addition of Sugars**:
- In fed-batch fermentation, the continuous addition of sugars helps maintain optimal growth conditions for the microorganisms. This is particularly important when the growth of the microorganisms is limited by the availability of nutrients.

4. **Purpose of Continuous Sugar Addition**:
- The continuous addition of sugars allows for sustained microbial growth and product formation. It ensures that the microorganisms have a constant supply of energy, which can lead to higher yields of the desired product, such as enzymes.

5. **Conclusion**:
- The continuous addition of sugars in fed-batch fermentation is primarily done to purify enzymes and enhance the production of desired metabolites by providing a steady nutrient supply to the microorganisms.