1, different nutritional composition

Soybean does not only mean soybean, it also contains black beans and green beans. Soybean nutrition is comprehensive, soybean content is rich, which protein content is two times higher than pork, is 2.5 times the egg content. The protein content is not only high, but also good quality.

The amino acid composition of soy protein and animal protein approximation, in which the amino acid is closer to the ratio of human needs, so it is easy to be digested and absorbed. If the soybean and meat food, egg food with the food to eat, its nutrition can be compared with the nutrition of eggs and milk, and even more than the nutrition of eggs and milk.

Black beans are rich in nutrients, containing proteins, fats, vitamins, trace elements and other nutrients, and at the same time have a variety of biologically active substances, such as black soybean pigment, black soybean polysaccharide and isoflavones.

2, medical value is different

Soybean fermented and processed seeds (tempeh): bitter, pungent, cool. Relieve the surface, remove annoyance, and promote the development of depressed heat. Used for colds, cold and heat headache, annoyance and chest tightness, false annoyance and insomnia.

Black beans are flat in nature, sweet in taste; attributed to the spleen, kidney meridian; has the effect of subduing swelling and lowering qi, moistening the lungs and drying up the heat, activating the blood to promote diuresis, dispelling wind and removing paralysis, replenishing blood and tranquillizing the mind, brightening the eyes and strengthening the spleen, replenishing the kidney and benefiting the yin, and detoxifying the toxins; it is used for oedema and distension, wind-poisoning foot, jaundice and edema, wind-paralysis and spasm, post-partum wind pains, silence of the mouth, carbuncle, swelling, sores and poisons, and it can detoxify the medicines, and check the wind-heat, and stop night sweating.

3, different morphological characteristics

Black beans

The product is ellipsoidal or spherical, slightly flattened, 6-12mm long, 5-9mm in diameter, the surface is black or grayish-black, smooth or wrinkled, glossy, and one side of the yellowish-white, long oval umbilicus. The texture is hard. Seed coat thin and brittle, cotyledons 2, fat, yellowish green or light yellow.

Slightly gas, light flavor, chewing with a soybean odor. Black beans, also known as scull beans, black soybeans, zero beans, folk more than black soybeans and horse feed beans, enjoy the king of beans in the reputation. Black beans anti-aging, medicine and food are good, it and soybeans with soybeans.

Soybean

Annual herb, 30-90 cm high. Stem stout, erect, or upper sub-twining, upper more or less angular, densely brown hirsute. Leaves usually 3-foliolate; stipules broadly ovate, acuminate, 3-7 mm long, veined, yellow pilose; petiole 2-20 cm long, scattered sparsely pilose or angled and hirsute when young;

Leaflets papery, broadly ovate, suborbicular, or elliptic-lanceolate, terminal one larger, 5-12 cm long, 2-8 cm broad, apex acuminate or suborbicular, sparsely obtuse, apiculate-convex The terminal one is larger, 5-12 cm long, the apex acuminate or subrounded, the base broadly cuneate or rounded, the lateral leaflets smaller, obliquely ovate, usually scattered hispid on both surfaces or glabrous below; lateral veins 5 on each side; stipules beryllium-needle shaped, 1-2 mm long; petiolule 1.5-4 mm long, covered with yellow-brown hirsute hairs.

Baidu Encyclopedia - Soybean