Question

Which of the following plant natural products is/are cyanogenic glycosides?

• A. ( Linustatin )
• B. ( Limonene )
• C. ( Luteolin )
• D. ( Linamarin )

Hint:

When identifying plant compounds, it's crucial to distinguish between different types of secondary metabolites such as terpenes, flavonoids, and glycosides, each of which plays unique roles in plant ecology and human use.

Answer 1

The Correct Option is A

Cyanogenic glycosides are natural plant compounds that can release hydrogen cyanide when metabolized. They are typically found in several plant families and are considered a defense mechanism against herbivores. Detailed Analysis of Each Option: 
(A) Linustatin: Correct. Linustatin is a cyanogenic glycoside found in some plant species, including flax. It can release cyanide upon hydrolysis. 
(B) Limonene: Incorrect. Limonene is a terpene, commonly known for its presence in citrus fruit peels, and is used for its fragrance and flavor. It is not a cyanogenic glycoside. 
(C) Luteolin: Incorrect. Luteolin is a flavonoid, known for its antioxidant properties, found in various fruits and vegetables. It does not belong to the class of cyanogenic glycosides. 
(D) Linamarin: Correct. Linamarin is a well-known cyanogenic glycoside found in cassava and other plants, where it serves as a defense mechanism by potentially releasing cyanide when the plant tissue is damaged. Conclusion:
Explanation: Linustatin and Linamarin both belong to the group of cyanogenic glycosides, compounds that can release hydrogen cyanide, a potent inhibitor of cellular respiration, under certain enzymatic conditions.