Sunflower seed, the fruit of sunflower, can be eaten and pressed with oil? . Sunflower seeds are rich in unsaturated fatty acids, vitamins and trace elements. They are delicious and are very popular sources of leisure snacks and edible oil.

Sunflower seed consists of pericarp (shell) and seed, and the seed consists of seed coat, two cotyledons and embryo.

The pericarp is divided into three layers, and the exocarp is membranous with short hairs on it; Mesocarp is leathery, hard and thick; Endocarp villous. The seed coat has two thick cotyledons, radicles, stems and germs, and there is no endosperm. Radicle, embryo stem and embryo are located at the top of the seed. Seed coat consists of outer epidermis and inner epidermis, which is a white film.

The fruit of sunflower seed is achene, and there is a free seed (seed kernel) in the achene cavity, and there is a thin seed coat on the seed. The fruit is white, light gray, black, brown and purple, with wide stripes, narrow stripes and no stripes. New discovery: There are three seeds (kernels) in the fruit cavity.

Extended data:

Main value

Therapeutic value

1, sunflower seeds contain about 50% fat, mainly unsaturated fat, without cholesterol; Linoleic acid content can reach 70%, which is helpful to reduce the level of human blood cholesterol and protect cardiovascular health.

2. Rich trace elements such as iron, zinc, potassium and magnesium make sunflower seeds have the function of preventing anemia, and are also a good source of vitamin B 1 and vitamin E. ..

3, eating a handful of sunflower seeds every day can meet the vitamin E that the human body needs for one day.

4. It is good for calming emotions, preventing cell aging and preventing adult diseases.

5. It can treat insomnia and enhance memory. It has certain preventive effect on cancer, hypertension and neurasthenia.

6. In addition to being rich in unsaturated fatty acids, it also contains a variety of vitamins, folic acid, iron, potassium, zinc and other essential nutrients. Sunflower seeds contain a lot of dietary fiber, and every 7 grams of sunflower seeds contain 1 gram, which is much higher than that of apples.

7. The American National Cancer Institute is proving that dietary fiber can reduce the incidence of colon cancer. The iron content in sunflower seeds is twice that of raisins and peanuts, so it can also prevent anemia.

8. protein of sunflower seeds contains arginine. Arginine is an indispensable component in semen production. Therefore, it is very beneficial for men in reproductive period to eat sunflower seeds every day.

Medicinal value

Sunflower seeds are rich in vitamin E, which is one of the most abundant foods. Vitamin E is an antioxidant, which helps to maintain normal nerve and muscle tissue, make the capillary wall more stable, and make the originally stagnant blood circulation recover smoothly.

Winter is the season of cardiovascular and cerebrovascular diseases. Sunflower seeds are rich in linoleic acid, which can prevent cardiovascular and cerebrovascular diseases such as hypertension and arteriosclerosis.

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