Clostridium butylicum has been used in the synthesis of

Options

A. Vitamin `B_(2)`
B. Vitamin A
C. Vitamin C
D. Vitamin D.

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question mentions "Clostridium butylicum," which is also known as "Clostridium acetobutylicum." This is a crucial first step as it helps us understand the characteristics and uses of this specific bacterium.

2. **Understand its Commercial Importance**: Clostridium butylicum is recognized for its commercial applications. It is often referred to as the "Wiesmann Organism," indicating its significance in industrial processes.

3. **Determine the Synthesis Product**: The main focus is on what Clostridium butylicum is used to synthesize. The video transcript clearly states that this bacterium is used for the synthesis of vitamin B2.

4. **Recognize Vitamin B2**: Vitamin B2 is also known as riboflavin. Understanding this is essential as it connects the bacterium to its product.

5. **Evaluate the Options**: The question provides four options:
- Vitamin B2
- Vitamin A
- Vitamin C
- Vitamin D

Based on the information discussed, we can eliminate options B, C, and D, as Clostridium butylicum is specifically linked to the synthesis of vitamin B2 (riboflavin).

6. **Conclude the Answer**: Therefore, the correct answer to the question is option A, which is vitamin B2.

**Final Answer**: Clostridium butylicum has been used in the synthesis of vitamin B2 (riboflavin).

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