While learning to cook, Rajesh noticed that when he crushed a dozen of groundnuts in a grinder, it gets lined with oil. Whereas no oil is released when he grinds a bowl of cumin. What could be the reason behind this difference?

Correct option is D

​The correct answer is (d) The fat in groundnut releases oil.

Explanation:

• When Rajesh grinds groundnuts (peanuts), oil is released because groundnuts contain a significant amount of fat. These fats are stored in the oil cells of the nut, and when ground, the mechanical force breaks these cells, causing the oil to be released. This is why groundnuts are often used for making peanut oil or peanut butter.
• On the other hand, cumin seeds do not release oil because they have a lower fat content compared to groundnuts. When cumin is ground, it releases its essential oils, which provide the characteristic aroma and flavor but not in the same quantity as the fat in groundnuts.

Information Booster:

• Groundnuts (Peanuts) are rich in fats, particularly monounsaturated and polyunsaturated fats. These oils are extracted when the nuts are ground or crushed.
• Cumin is rich in essential oils (like cuminol), but it doesn't contain as much fat compared to groundnuts, so it doesn't release oil in the same manner.