Pungent principle, a sinigrin, of crucifers is a

Options

A. glycoside having sulphur
B. glycoside having cyanide
C. glycoside having special amino acids
D. tannin

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:** The question asks about the pungent principle known as sinigrin found in crucifers. We need to identify what sinigrin is.

2. **Identifying Sinigrin:** Sinigrin is a compound that is commonly found in plants of the family Brassicaceae, which includes crucifers such as mustard, cabbage, and broccoli.

3. **Chemical Classification:** Sinigrin is classified as a glycoside. Glycosides are compounds that consist of a sugar molecule bonded to another functional group, which can be an aglycone (non-sugar part).

4. **Identifying the Functional Group:** In the case of sinigrin, the aglycone part is derived from a sulfur-containing compound. This is significant because it contributes to the pungent flavor associated with cruciferous vegetables.

5. **Conclusion:** Therefore, the pungent principle sinigrin of crucifers is classified as a glycoside of sulfur.

**Final Answer:** Sinigrin is a glycoside of sulfur.

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