Thaumatin is sweetest substance which is obtained from:

Options

A. thermophilus aquaticus
B. thaumatococcus denielli
C. thiobacillus
D. trichoderma viridae

Answer

**Step-by-Step Solution:**

1. **Understanding Thaumatin**: Thaumatin is known as one of the sweetest substances and is classified as a low-calorie sweetener. It is primarily used as a flavoring agent in various food products.

2. **Identifying the Source**: Thaumatin is derived from a specific plant. To answer the question, we need to identify which of the given options is the correct plant source.

3. **Analyzing the Options**:
- **Thermophilus aquaticus**: This is a type of bacteria known for its heat-resistant enzyme, Taq polymerase, used in PCR (Polymerase Chain Reaction). This option is incorrect.
- **Thaumatococcus daniellii**: This is a plant from which thaumatin is extracted. This option is correct.
- **Thiobacillus**: This is a genus of bacteria, some of which are pathogenic. This option is incorrect.
- **Trichoderma viridis**: This is a fungus used as a biocontrol agent. This option is also incorrect.

4. **Conclusion**: The correct answer is **Thaumatococcus daniellii**, as it is the plant from which thaumatin is obtained.

**Final Answer**: Thaumatin is sweetest substance which is obtained from **Thaumatococcus daniellii**.

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