In the historical events of soybean, soybean is the panicum miliaceum of Leguminosae, and soybean is the food we often eat and touch in our life. Many people like to eat tofu and drink soybean milk, because they are nutritious and will not get fat easily. So, what are the historical events of soybeans?

Soybean historical events 1 soybean name origin history

Soybean, commonly known as soybean, was called "glutinous rice" in ancient China. Soybean is a transliteration of China glutinous rice in English. After Qin and Han Dynasties, the word "soybean" replaced the word "soybean" and was widely used.

The word "soybean" first appeared in Shennong's novel stereotyped writing, including: "Soybean was born in Sophora japonica. Out of tears, in Shiyun Valley, it takes 90 days to blossom, 60 days to mature, and 150 days to get everything done. " "Fan Sheng Zhi Book" contains: "Soybean can ensure a bumper harvest and is easy to plant". Since the Han dynasty, the planting area of soybean in China has been expanding and the output has been increasing.

The history of soybean origin

Soybean originated in China, and China is the hometown of soybean, which is recognized by the world. Soybean has been cultivated, eaten and used medicinally in China for 5000 years, and was introduced to the United States in 1804. In the mid-20th century, it became an important crop in the southern and midwest of the United States.

Soybean historical documents record history.

Agriculture in China began in the Neolithic Age. According to textual research, there are also records about soybeans in Oracle Bone Inscriptions of Shang Dynasty. Shang Dynasty soybean fossils unearthed in Houma, Shanxi.

In the Zhou Dynasty, soybeans also occupied a considerable position. During the Spring and Autumn Period, Qi Huangong introduced soybeans from Shanrong in the north to the Central Plains for planting. Poems such as The Book of Songs record that "there are cymbals in the Central Plains, and Shu Ren adopted them". In the 5th century BC, the article Mozi contained the following words: "Cultivate family tree art and pick millet. It is because of the millet that the people are full. " Judging from the books and articles of this period, it is generally said that the area planted with millet was increasing at that time, and the area planted with millet was also increasing, and millet became the main food of the people. From the 5th century BC to the 3rd century BC, the distribution, shape and species of soybeans were described in detail. According to historical records, soybeans originated in China, and people in China have been eating beans for thousands of years.

Historical event of soybean 2: the efficacy and function of soybean

(A) the efficacy of soybeans

Soybean is sweet, warm, flat and non-toxic. Meridian of spleen and large intestine. It has the effects of invigorating spleen, relaxing bowels, moistening dryness, promoting diuresis, clearing away heat and toxic materials, and invigorating qi, and is mainly used for treating malnutrition, diarrhea, abdominal distension and emaciation, pregnancy poisoning, sores and swelling, traumatic bleeding, etc. Soybean can also resist bacteria and diminish inflammation, and is effective for pharyngitis, conjunctivitis, stomatitis, bacillary dysentery and enteritis.

Herbs for daily use: "Broaden the middle and lower the qi, benefit the large intestine, eliminate water and reduce swelling. Treat swollen poison. "

Compendium of Materia Medica: "Boiling juice and drinking it can moisten the spleen and dry it, so it can eliminate dysentery."

Ben Feng Jingyuan: "If you eat poison by mistake, pound it with water and pour it out;" If you can't spit out all kinds of bacteria, you can drink it in thick soup. " I also tried carbuncle, abdominal pain caused by stench, and chewed with raw soybeans. Sweet but not greasy, this is the real symptom of carbuncle, pus and foul smell eruption in the upper body. "

"Guizhou folk prescription drug collection": "for breastfeeding; Grinding into powder for external application can stop bleeding and pull out boils. "

(B) the role of soybeans

Enhance the body's immune function

Soybean can enhance the immune function of human body. Soybean is rich in protein and has the reputation of "vegetable meat". If the human body lacks protein, it will have the symptoms of decreased immunity and fatigue. Eating soy protein supplements can avoid the problem of rising cholesterol in meat. Soybean contains a variety of essential amino acids, which can improve human immunity.

Prevention of vascular sclerosis

Lecithin in soybean can remove cholesterol attached to blood vessel wall, prevent arteriosclerosis, prevent cardiovascular diseases and protect the heart. Lecithin in soybean can also prevent the accumulation of excessive fat in the liver, thus effectively preventing fatty liver caused by obesity.

Dredge stool

Soybean has a certain effect on preventing constipation. Soluble fiber contained in soybean can not only relieve constipation, but also reduce cholesterol content.

reduce the blood sugar

Soybean has a certain hypoglycemic effect. Soybean contains a substance that inhibits pancreatic enzyme, which has therapeutic effect on diabetes and can inhibit weight gain.

Relieve female climacteric symptoms

Huang Doudou isoflavone is a phytoestrogen with estrogenic activity, and its structure is similar to estrogen. Can relieve symptoms of female climacteric syndrome, delay female cell aging, maintain skin elasticity, protect skin, reduce bone loss, promote bone formation and reduce blood lipid.

Improve brain function

Soybean is rich in soybean lecithin, which is one of the important components of the brain. Eating more soybeans can help prevent Alzheimer's disease. In addition, sterols in soybean lecithin can increase nerve function and vitality. Eating soybeans can improve brain function.

Strong organs

Soybean lecithin can also promote the absorption of fat-soluble vitamins and strengthen various tissues and organs of human body. In addition, it can reduce cholesterol, improve lipid metabolism and prevent coronary atherosclerosis.

Improve one's energy

Protein in soybean can increase the excitement and inhibition function of cerebral cortex, improve the efficiency of study and work, and help to relieve depression.

Whitening skin care

Soybean is rich in soybean isoflavone, which is a phytoestrogen that can improve skin aging. In addition, Japanese researchers found that linoleic acid contained in soybeans can effectively prevent the synthesis of melanin in skin cells.

cancer prevention

Soybeans contain protease inhibitors. Researchers at new york University in the United States have found that it can inhibit a variety of cancers, especially breast cancer.

Stop oxidation

Soybean saponin in soybean can scavenge free radicals in vivo and has antioxidant effect. It can also inhibit the growth of tumor cells and enhance human immune function.

Lowering blood lipid

Phytosterols in soybeans can lower cholesterol in the blood. It can compete with the cholesterol in the intestine and reduce the absorption of cholesterol. It can reduce the "bad cholesterol" in the blood of patients with hyperlipidemia without affecting the "good cholesterol" in the blood, and has a good lipid-lowering effect.

Prevention of deafness

Iron supplementation can dilate microvessels, soften red blood cells, ensure blood supply to ears and effectively prevent hearing loss. The content of iron and zinc in soybean is much higher than that in other foods, which has a certain effect on preventing deafness in the elderly.

Auxiliary decompression

American scientists have found that patients with hypertension consume too much sodium and too little potassium in their diet. Intake of high-potassium food can promote the discharge of excessive sodium salt in the body, which has the effect of assisting blood pressure reduction. Soybean is rich in potassium, and the potassium content per100g of soybean is as high as1503mg. Patients with hypertension often eat soybeans, which is very helpful to supplement potassium in the body in time.

Prolong life

Recently, a survey in South Korea showed that most centenarians in the country live in soybean planting areas without environmental pollution, and longevity is closely related to soybeans.

Historical Events of Soybean 3. Nutritional Value of Soybean

Soybean is known as the "king of beans", as "plant meat" and "green cow", with the most abundant nutritional value. Dry soybeans contain about 40% high-quality protein, which is the highest among other cereals. Modern nutrition research shows that one catty of soybean is equivalent to two catties of lean pork, or three catties of eggs, or twelve catties of milk with protein content. The fat content also ranks first among beans, and the oil yield reaches 20%; In addition, it also contains vitamins A, B, D, E and minerals such as calcium, phosphorus and iron. A catty of soybean contains 55 mg of iron, which is easily absorbed and utilized by the human body and is very beneficial to iron deficiency anemia; A kilo of soybean contains 2855 mg of phosphorus, which is very beneficial to the brain and nerves. All kinds of bean products after soybean processing not only contain high protein content, but also contain many essential amino acids that cannot be synthesized by human body. The protein digestibility of cholesterol content in tofu is as high as 95%, which is an ideal tonic and dietetic product. Soybean, bean products such as tofu and soybean milk have become popular healthy foods all over the world.

protein

Protein is the "building material" of human body. Protein, its hydrolyzed amino acids and its quaternary ammonium derivatives are important nutrients and one of the three indispensable elements in human body. Modern nutrition affirms that all enzymes-catalysts and "engines" in biology are protein; At the same time, the trace elements that affect the normal physiological function of human body also belong to the category of protein. So protein is the foundation of life. The main raw material of cells is protein, and protein is indispensable for human skin, muscles, hair and nails. The lack of protein in human body will produce many diseases, including skin diseases, which will affect growth and development and hinder physical fitness; Malnutrition, edema and disfigurement may also occur; It will also make the skin rough and inelastic, wrinkles increase, hair loss and white hair increase, making the face look aging. Regular consumption of high-protein foods such as soybeans and bean products can nourish skin, muscles and hair, make skin moist, tender and elastic, make muscles plump and firm, make hair black and shiny, and prolong life.

Isoflavones (also known as flavonoids)

Strong antioxidants are one of the most powerful weapons for scavenging free radicals.

Organic potassium

The human pancreas is the main place for insulin secretion, and the pancreas is the most abundant tissue containing potassium ions. When a large number of potassium ions leave the pancreatic tissue. At the same time, it also caused the decline of pancreatic insulin secretion function.

Soluble dietary fiber

Soluble dietary fiber accounts for about 1.5%, which plays a great role in gastrointestinal health care.

magnesian ion

Magnesium is a regulator of intracellular calcium ion, which guards the cell door. Magnesium and calcium form a special partnership in the production of ATP. Adenosine triphosphate (ATP) is a valuable biological energy in human body, and it is the source of power for human beings to engage in any activity.