The microorganism grown on molasses and sold as a food flavouring substance is:

Options

A. Saccharomyces
B. Rhizopus
C. Acetobacter
D. Lactobacillus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a microorganism that is grown on molasses and sold as a food flavoring substance.

2. **Identifying the Options**: The options provided are:
- A) Saccharomyces
- B) Rhizopus
- C) Acetobacter
- D) Lactobacillus

3. **Analyzing Each Option**:
- **A) Saccharomyces**: This is a genus of yeast, specifically Saccharomyces cerevisiae, which is commonly used in baking and brewing. It ferments sugars into alcohol and carbon dioxide, and is often grown on molasses.
- **B) Rhizopus**: This is a genus of molds, not typically associated with flavoring or fermentation in food.
- **C) Acetobacter**: This is a genus of bacteria that converts alcohol into acetic acid (vinegar), not primarily used for flavoring in the same way as yeast.
- **D) Lactobacillus**: This is a genus of bacteria used in fermentation (like yogurt), but it does not specifically grow on molasses for flavoring.

4. **Conclusion**: Based on the analysis, Saccharomyces cerevisiae is the microorganism that is grown on molasses and sold as a food flavoring substance.

5. **Final Answer**: The correct answer is A) Saccharomyces.

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