Bitter tea is a kind of drink made by screening and baking tartary buckwheat seeds. The common bitter buckwheat shell is yellowish white; the black bitter buckwheat is pearl black bitter, and it is called "black pearl", and the outer shell is dark black.
Bitter tea is a kind of fried rice tea. Tartary buckwheat is cool, resistant to phlegm, and grows in the alpine region, and the grain is for consumption. The main producing areas are Sichuan, Shaanxi, Yunnan, Guizhou and Shanxi.
Bitter tea contains flavonoids, the main component of which is rutin. The content of rutin accounts for 70-90% of the total flavonoids. Rutin, also known as musk quince and vitamin P, has the effect of reducing capillary fragility and improving microcirculation. It is mainly used for the adjuvant treatment of diabetes and hypertension in clinical practice. Rutin is almost absent from other grains.
People have also studied the nutrients in tartary buckwheat and its anti-aging effects on the human body. The results show that it is not only rich in protein, chlorophyll, fat, carbohydrate, crude fiber, minerals and traces in tartary buckwheat tea. The element also contains 18 kinds of natural amino acids with a total content of 11.82% and contains 9 kinds of fatty acids, which can promote the growth and development of young children and prevent coronary heart disease in adults.
The role and efficacy of bitter tea
Endocrine system
1, hypoglycemic effect
Tartary buckwheat flavonoids can promote the recovery of islet β cells, lower blood sugar and serum cholesterol, improve glucose tolerance, counteract adrenaline glycemic effect, and also inhibit aldose reductase, thus treating diabetes and its complications.
2, lowering blood fat
Quercetin, which is rich in tartary buckwheat, can reduce triglycerides, total cholesterol, and reduce atherosclerosis index.
Cardiovascular system
1, the role of the heart muscle
Can be used to treat arrhythmia, angina pectoris, myocardial infarction and other symptoms.
2, the role of blood vessels
The rutin rich in tartary buckwheat flavonoids has the function of dilating blood vessels, and quercetin and mulberry pigment can improve the contraction and relaxation function of vascular smooth muscle.
Antibacterial, antiviral
According to research, quercetin, morin, and non-alcohol, which are rich in tartary buckwheat flavonoids, have antibacterial and antiviral effects. The clinical application of the flavonoids has a peculiar curative effect on anti-inflammatory and analgesic effects on ulcers caused by various causes.
Anti-oxidize effect
The inhibition of 3-OH, 5-OH, 4-carbonyl and 2, 3 double bonds in the automatic oxidation of fats plays a leading role. The ability to inhibit the oxidation of oils quercetin > mulberry pigment > rutin.
Anti-cancer, anti-cancer
The flavonoids such as quercetin, which is rich in tartary buckwheat, can achieve anti-cancer and anti-cancer effects through three ways, namely, anti-free radical action, directly inhibiting cancer cell growth and anti-carcinogenic factors. The biloba flavonoids contained in the bioflavonoids are the preferred drugs for anti-cancer, anti-cancer and cancer treatment.
Free radical scavenging
Free radicals are the source of evil for cancer, aging, and cardiovascular and degenerative diseases. Because the bitter flavonoid material is easily oxidized, it has the function of scavenging free radicals. The molecular structure of tartary buckwheat flavonoids conforms to the theory of effective phenolic hydroxyl groups and has strong free radical scavenging ability. They have five hydroxyl groups, which can be sufficient as hydrogen donors to reduce free radicals and thus scavenge free radicals. The purpose is to achieve anti-aging, anti-cancer, anti-cardio-cerebral vascular disease.
Bone tissue
Tartary buckwheat flavonoids can be used to treat bone diseases and osteoporosis. The mechanism of action is that it can inhibit the increase of collagen synthesis of prostaglandin E2 (PGE2) and inhibit the collagen synthesis of PGE2. It inhibits {BH}-proline into digestible collagen and non-collagen, and mainly acts on non-collagen synthesis at low concentrations of PGE2, and mainly acts on collagen synthesis at high concentrations of PGE2. Therefore, it can be used to treat bone diseases; second, it can increase the sensitivity of the thyroid to estrogen, strengthen the action of thyroid C cells to secrete calcitonin, and finally inhibit bone resorption and treat osteoporosis; third, it can inhibit Reduced bone mineral density and bone calcium content caused by calcium deficiency and vitamin D in the diet.
Immune system
Tartary buckwheat flavonoids can significantly increase the body's non-specific immune function and humoral immune function.
Liver protection
Bitter flavonoids have certain curative effects on acute and chronic hepatitis, cirrhosis, fatty liver and toxic liver injury caused by galactosamine and CCL4. Studies have shown that tartary buckwheat flavonoids have a significant inhibitory effect on the increase of liver malondialdehyde (MDA liver lipid peroxidation end products) caused by CCL4. It can alleviate the consumption of glutathione (GSH) by liver injury; it can protect the integrity of cell structure and prevent the activity of soluble enzymes such as transaminase in liver cells from being leaked out of cells; the liver protection mechanism of tartary buckwheat flavonoids Ultimately lies in its antioxidant and anti-free radical effects.
anti-UV
Flavonoids such as quercetin, which are rich in tartary buckwheat flavonoids, are light-shielding materials and have the function of absorbing ultraviolet rays. It can protect bioactive substances such as ascorbic acid from oxidation and maintain their activity. It is an excellent antioxidant, and its chelation and gene expression have obvious functions of reducing fat oxidative degeneration. In particular, the flavonoid has a health-care effect on the skin, youthfulness and vascular health care, and the anti-inflammatory effect is particularly remarkable, so some people call it "skin nutrients".
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