Where is the origin of black beans? How do you eat it? What are the effects and effects?

Black beans, also known as Lu beans, black soybeans, etc., have high protein, low calorie characteristics, black skin, yellow or green inside, to have the reputation of the king of beans. So, where are the black beans grown? How? What are the effects and functions?

Where are the black beans grown?

1. From south to north, black beans are planted everywhere in China. The richness of variety resources is the first in the world. Currently. There are more than 22000 soybean varieties preserved in China, of which 2980 are Chinese black beans, accounting for 13.2%. Most of them are distributed in the Yellow River Basin, which is the main production area of small black beans. Now Shaanxi, Shanxi Loess Plateau area is still mainly planted black beans, some local farmers collectively referred to soybeans as black beans, soybeans called white black beans, black beans called black beans, it can be seen that the local black bean cultivation is extensive and long.

2. Black bean cultivation types are rich, the north is mostly spring black bean, which ripens once a year; there are both spring black bean and summer black bean in the Yellow River Basin; in addition to spring sowing and summer sowing in the south of Yangtze River. There are also autumn and winter black beans. Black beans have a short growth period of 90 days and a maximum of 165 days. Therefore, there are very early maturity species, early maturity species, medium maturity species, late maturity species and very late maturity species. The seed size of black beans also varies greatly, the smallest such as black beans in Ji County, Shanxi Province, weighing only 4 grams per 100 seeds; the largest such as black silkworm mouth beans in Jintan City, Jiangsu Province, weighing 3704 grams per 100 seeds. Black beans have very small, small, medium, medium, large, large and extra large grains, but mainly small and medium grains. Black beans have different grain shapes, mostly long oval, flat oval, oblate, kidney, round, round particles less. Black bean cotyledons, the vast majority of yellow, accounting for more than 96%, a very small number of green, that is, the so-called black green kernel. This kind of black bean has high nutritional value and medicinal value. It is called medicinal black bean and is a good variety for export.

3. There are many valuable black bean varieties in our country. For example, Heilongjiang Province Jiamusi black bean planting base newly cultivated bright skin green kernel black bean, Zhejiang Province black skin green kernel, For traditional export products, in the international market price five or six times higher than wheat; The newly cultivated black soybean with bright skin and green kernel in Taixing black soybean and Jiamusi black soybean planting base of Jiangsu Province is insensitive to light and has strong adaptability, which is extremely rare among various soybean varieties. Small black beans in Ying County, Shanxi Province Black soybean from Xing County is a valuable resource against cyst nematode disease. There are also many varieties with high medicinal value, some black bean varieties have special stress resistance, and have high application value in production and breeding.

How to eat black beans?

1. Black Bean and Chicken Claw Soup

Remove impurities from black beans and soak in water for 30 minutes. Wash chicken feet and blanch them in boiling water. Put the chicken feet and black beans into the pot, boil them with strong fire first, skim off the floating foam, then cook them with slow fire until the meat and beans are cooked, season with salt and serve.

2. Stewed carp with black beans

Carp will be slaughtered, to scale, gills, to the intestines. Stir-fry black beans until shells crack. Rinse. Red dates to the core, wash. Put carp, black beans and red dates into a stewed pot and add appropriate amount of water. Cover and stew for 3 hours. Serve.

3. Black beans soaked in vinegar

Put the black beans in a pan, fry them with medium heat until the skin bursts, put them into bottles or jars, add rice vinegar, seal the bottle cap after cooling, wait for the black beans to absorb vinegar, and then eat them after swelling.

What are the effects and functions of black beans?

1. Black beans are rich in trace elements, each 100 grams of black beans, calcium 370 mg, phosphorus 577 mg, iron 12 mg, other such as zinc, copper, magnesium, molybdenum, selenium, fluorine and other contents are not low. These elements can meet the needs of the brain, delay brain aging, reduce blood viscosity, and maintain body function integrity.

2. Black beans also have beauty and beauty effects for young women. Black beans are rich in vitamins, of which E and B vitamins are the highest, vitamin E content is 5 to 7 times higher than meat As we all know, vitamin E is a very important substance to maintain youth and fitness.

3. Calcium, magnesium and other minerals in black beans can also relieve the tension of visceral (except heart) smooth muscle, play a role in dilating blood vessels and promoting blood circulation, thus relieving hypertension. It can be said that black beans are soy products that patients with hypertension can eat more.