Why do we eat peanuts
Peanut is also known as groundnut. Peanut has the effect of nourishing and tonifying and helps to prolong life. Therefore, it is also known as "longevity fruit" among the people, and is known as "plant meat" and "meat in vegetables" like soybeans. Next, let's briefly introduce peanuts:
Geographical distribution of peanut:
Peanut is a leguminous crop, one of the main varieties of high-quality edible oil, also known as "peanut" or "longevity fruit". Peanut is an annual herb, originated in tropical and subtropical regions of South America, mainly distributed in the vast area between 40° south latitude and 40° north latitude. There are mainly two types of areas: one is the semi-arid tropics of South Asia and Africa; the other it is the temperate semi-humid monsoon zone of East Asia and America. It was introduced to China in the 16th century and developed at the end of the 19th century.
The world's peanut exports are concentrated in several major producing countries. China, the United States, Argentina and India are the four largest peanut exporters in the world.
Nutritional value of peanut:
Peanut fruit has high nutritional value and is rich in fat and protein. According to the determination, the fat content in peanut fruit is 44% - 45%, the protein content is 24-36%, and the sugar content is about 20%. Peanuts are also rich in vitamins B2. PP, a, D, e, calcium and iron. It also contains thiamine, riboflavin, niacin and other vitamins. It is also rich in minerals, especially amino acids necessary for human body, which can promote the development of brain cells and enhance memory.
Peanut seeds are rich in oil (oil content is 45 ~ 55%, and a few varieties can reach about 60%). The oil extracted from peanut kernel is light yellow, transparent and fragrant. It is a high-quality edible oil. Peanut oil is difficult to dissolve in ethanol. People can identify whether peanut oil is pure by injecting peanut oil into 70% ethanol solution and heating it to 39-40.8 degrees to see its turbidity. Peanut oil is an oil made by soaking peanut kernel. Peanut oil is a non drying oil with light yellow color, good transparency and delicious fragrance. It is an excellent cooking oil.
Main functions of peanut:
1. Lower cholesterol
2. Delay human aging
3. Promote children's bone development
4. Tumor prevention
5. Coagulation and hemostasis.

