Soy Isoflavones

Plant source: Glycine max (Linn.) Merr.

Origin: Northeast China

Synonym: phytoestrogen

Appearance: light brown yellow to off-white powder

Specifications: Isoflavones 10% , 40% , 80% HPLC


Product Details

What are isoflavones?

Isoflavones are phenolic compounds based on the phenylchromone ring formed by cinnamoyl-CoA side chain extension and cyclization during the metabolism of plant phenylalanine. The 3-phenyl derivative is isoflavones. Plant secondary metabolites, the chemical formula is C15H10O2. Flavonoids are an aromatic oxygen-containing heterocyclic compound, isomers of flavonoids. The refined isoflavones are flake or needle crystals. Generally colorless, but with the increase of hydroxyl, it can be yellow to deep yellow. It is a pigment widely distributed in higher plants. Some isoflavones are phytoalexins, and some can be used for the treatment of cardiovascular diseases.

Isoflavones are one of the flavonoids, mainly found in legumes. Soy isoflavones [1] are a class of secondary metabolites formed during the growth of soybeans. Because it is extracted from plants and has a similar structure to estrogen, it is called phytoestrogens.

The estrogenic effect of soybean isoflavones affects hormone secretion, metabolic biological activity, protein synthesis, growth factor activity, and is a natural cancer chemopreventive agent.

Probiotic soy isoflavones are biologically active substances refined from non-genetically modified soybeans. They are a natural nutrient factor with a variety of important physiological activities. They are pure natural phytoestrogens that are easily absorbed by the body and can quickly replenish nutrients.

In each 100 grams of soybean samples, it contains 128 mg of isoflavones. The protein isolate produced by the traditional method contains 102 mg of isoflavones, while the soy milk contains 9.65 mg. Because soy milk contains 93.27% of water, it is equivalent to the isoflavones per 100 grams of dry matter. More than 100 mg. Tofu contains 27.74 mg of isoflavones, and its dry matter contains more than 200 mg of isoflavones.

Isoflavones are a weak phytoestrogens. Soy is the only effective source of isoflavones for humans. In the case of strong estrogen physiological activity, isoflavones can play an anti-estrogen effect and reduce the risk of cancers activated by estrogen, such as breast cancer. When women's estrogen levels decrease during menopause, isoflavones can play a replacement role. Avoid menopausal symptoms such as hot flashes.

The anti-cancer properties of isoflavones are very prominent, can hinder the growth and spread of cancer cells, and only have an effect on cancer cells, and have no effect on normal cells.

Isoflavones are also an effective antioxidant that can prevent the generation of oxygen free radicals, which are a strong carcinogen. It can be seen that the anti-cancer effect of isoflavones has many ways and ways.

Isoflavone structure

It has always been considered to have the activity of vitamin P, and it has been discovered that it has more physiological activities and has the functional properties of regulating body metabolism.

Soy contains a variety of isoflavones. For comprehensive utilization, it can be extracted from soybean hull residue and purified by petroleum ether for crystallization. Among them, genistein has the health effects of lowering cholesterol, promoting calcium absorption, and regulating the immune function of the body, making soybean food more special edible value.

The role of isoflavones

Prevent menopausal syndrome

Before and after women's menopause, due to the decline of ovarian function, the level of estrogen in the body decreases, causing the adjustment of the functions of various organs and tissues to be unsuitable, and a series of diseases appear. Supplementing estrogen can achieve the purpose of preventing and treating such diseases.

Menopausal manifestations of women: hot flashes, sweating, chills, chest tightness, palpitations, shortness of breath, dizziness, blood pressure fluctuations, etc.; emotional instability, irritability, irritability or depression, anxiety, insomnia, memory loss, and inconcentration , Decrease in comprehensive judgment.

Prevent and improve osteoporosis

Osteoporosis refers to the reduction of bone tissue that leads to brittle and fragile bones, which are easy to fracture. It is common in women and elderly men after menopause (due to hormone changes or insufficient calcium and vitamin D). The incidence of osteoporosis in middle-aged and elderly women is much higher than that in men. The main reason is that estrogen levels decrease after ovarian function declines, bone metabolism appears negative balance, and bone mass decreases. Isoflavones can bind to estrogen receptors on bone cells to reduce bone loss, increase the body's absorption of calcium, and increase bone density.

Prevent breast cancer

Long-term use of estrogen alone can increase the incidence of breast cancer and endometrial cancer by 5 to 7 times. The structure of soy isoflavones is similar to that of estrogen, so it can bind to the female receptors on the cell surface and activate other anti-cancer mechanisms, reducing the risk of women suffering from endometrial cancer and breast cancer due to high levels of estrogen.

Prevent cancer

Soy products contain 5 known anti-cancer factors, one of which is phytoestrogens (isoflavones), which are unique anti-cancer factors in soy foods. Scientists concluded that the anti-oxidation and anti-proliferation effect of genistein is the main reason for its anti-cancer effect. Soy isoflavones have obvious therapeutic effects on breast cancer, colon cancer, lung cancer, prostate cancer, skin cancer and leukemia. Soy isoflavones can also prevent the occurrence of ovarian cancer, colon cancer, stomach cancer and prostate cancer.

A large number of studies have found that soy isoflavones can transform cancer cells into cells with normal functions. At the same time, they can also inhibit undesirable tumor structure and prevent tumor proliferation and cancer cell proliferation.

Prevent cardiovascular disease

Heart disease is also a disease related to estrogen. As a phytoestrogens, soybean isoflavones reduce blood lipids and prevent heart disease. The mechanism is: estrogen-like action promotes the secretion of thyroxine and promotes bile excretion. It has been fully proven that it can lower low-density lipoprotein (LDL) cholesterol while lowering cholesterol, but not high-density lipoprotein (HDL) cholesterol. As a feature of flavonoids, isoflavones have biological antioxidant effects, which is very important. Because the oxidation of low-density lipoprotein (LDL) cholesterol is a key factor in the process of arteriosclerosis. Women who receive 80 mg of pure genistein daily can increase arterial elasticity by about 26%.

Prevent Alzheimer's Disease

Alzheimer's disease is currently the most common type of dementia, which is more common in women. Recent studies have shown that the human brain is also a target tissue for estrogen. The hippocampal synaptosomes with memory functions in the brain contain estrogen receptors. The medical profession has confirmed that estrogen levels are closely related to Alzheimer’s. Soy isoflavones and true estrogen are good for the brain.

Beauty, anti-aging

The estrogen-like effect of soy isoflavones can make women's skin smooth, delicate, tender, elastic, and youthful. Women activate the adipose tissue in the breasts by supplementing estrogen, so that free fat is attracted to the breasts to achieve the effect of breast enhancement.

Studies have shown that: modern women experience early menopause, long-term supplementation of soy isoflavones can maintain normal levels of estrogen in the body, delay menopause, and achieve the effect of delaying aging.

Improve menstrual discomfort

Menstrual discomfort is generally related to the unbalanced secretion of estrogen. Long-term supplementation of soy isoflavones can maintain normal levels of estrogen in the body and achieve the purpose of improving menstrual discomfort.

Improve sexual function

The estrogen-like effect of soy isoflavones can increase the maturity of female vaginal epithelial cells and increase vaginal muscle elasticity, thereby improving the quality of sexual life.

Reduce cholesterol

Cardiovascular disease (CHD) is a multifactorial disease, in which cholesterol (Ch) plays an important role. A large-scale study of 5,000 people conducted in Japan showed that soy isoflavones have the effect of lowering cholesterol and inhibiting thrombosis. A study on young women in the United Kingdom showed the dose-effect relationship of isoflavones. Isoflavones above 45 mg per day can reduce total Ch and LDL-Ch levels by 10% for 30 consecutive days, while 23 mg isoflavones has no effect.

prevent disease

Soy isoflavones can reduce the body's susceptibility to serum LDL oxidation. After the serum LDL lipoprotein is oxidized, it activates the phagocytosis of macrophages in the human body and develops into foam cells in the arterial wall to form atheromatous plaques. Soy isoflavones not only have their own antioxidant effect, but can also induce the increase of antioxidant enzyme activity, improve the antioxidant capacity of serum LDL, prevent the formation of atherosclerotic plaque in the arterial wall and prevent atherosclerosis. At the same time, it increases the compliance of arteries and expands blood vessels. Soy isoflavones also inhibit the atherosclerotic process by affecting tyrosine kinases, including foam cells, fatty streaks, hyperplasia, fibrous plaque infiltration, rupture and ulcers, keeping the heart arteries and blood vessels unobstructed and preventing cardiovascular diseases happened.

Isoflavones suitable for people

  • 1. Women with loose, rough skin, increased wrinkles, and spots.

  • 2. Women with backaches and legs, insomnia, and lack of energy.

  • 3. Women with poor temper, emotional instability, nervousness, and palpitations.

  • 4. Women with declining physical function and menstrual discomfort.

Soy Isoflavones Supplier

YouBio is a manufacturer and supplier specializing in the production of soy isoflavones. After reading the above soy isoflavones, you must have some understanding of our products. We are a large-scale well-known Chinese manufacturer specializing in the production of extracts. If you want to have long-term cooperation with us, please contact us.


Soy isoflavones are flavonoids compounds, secondary metabolites formed during the growth of soybeans, and a kind of biologically active substance. As they are extracted from plants and have the similar structure to estrogen, soy isoflavones are also called phytoestrogens. The estrogen effect of soybean isoflavones affects hormone secretion, metabolic biological activity, protein synthesis, and growth factor activity. They are a kind of natural chemopreventive agent against cancers.

The main structural form of soybean isoflavones is a compound group in which 3-benzopyrone is the mother nucleus. Natural soy isoflavones are mainly divided into free aglycones and conjugated glycosides; wherein the conjugated glycosides are hydrolyzed and deglycosylated by enzyme or dilute acid to form soybean isoflavone aglycones. Free soy isoflavone aglycones include genistein, isoflavoues aglycone and daidzein. The conjugated soybean isoflavone glycosides are the glucoside type, acetylglucoside type, and malonylglucoside type of the aforesaid three aglycones, respectively.



There are 12 types of soy isoflavones, which can be divided into three categories, namely soybean glycoside group, reproductive group and glycine group. There are four forms of each category: free form, glucoside type, acetylglucoside type, and malonylglucoside type.


Function and usage:

1. The mechanism of action of soybean isoflavones in cardiovascular diseases is diverse. More mature mechanisms include antioxidant effect, receptor regulation, inhibition of vascular smooth muscle cell proliferation, and antithrombotic effect.

2. Soy isoflavones have the weak estrogen effect, bind to osteoblast estrogen receptors, enhance the osteoblast activity, promote the process of bone matrix production, secretion and bone mineralization, and can prevent the occurrence of osteoporosis. The study results show that the ingestion of more and more soy isoflavone soy protein can increase the subject's lumbar spine bone density.


Packaging and shipping:

25 kg export-grade cardboard barrels as outer package; double-layer food-grade plastic bag as inner package

25 kg/barrel

Shipped by air, by sea and by express.

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