Oolong tea, the predecessor of Beiyuan Tea Oolong Tea, originated in Fujian with a history of 1000 years. The formation and development of oolong tea should first be traced back to Beiyuan tea. Beiyuan tea is the earliest tribute tea in Fujian and the most famous tea after the Song Dynasty. There are more than ten kinds of books on the production and boiling of Beiyuan tea in history. Beiyuan is located in the Phoenix Mountain area of Jian 'ou, Fujian Province, where tea was produced in the late Tang Dynasty.
Oolong tea contains more than 450 organic chemical components and more than 40 inorganic mineral elements. Organic chemical components and inorganic mineral elements in tea contain many nutrients and medicinal components. Organic chemical components mainly include tea polyphenols, plant alkaloids, protein, amino acids, vitamins, pectin, organic acids, lipopolysaccharides, sugars, enzymes and pigments.
Tieguanyin contains organic chemical components such as tea polyphenols, catechins and various amino acids, which are significantly higher than other teas. Inorganic mineral elements mainly include: potassium, calcium, magnesium, cobalt, iron, manganese, aluminum, sodium, zinc, copper, nitrogen, phosphorus, fluorine and so on. Tieguanyin contains more inorganic mineral elements such as manganese, iron, fluorine, potassium and sodium than other teas.
Health function
1, eliminating reactive oxygen species harmful to beauty and health;
2. Drinking 1 L oolong tea every day can improve skin allergy;
3, drinking oolong tea can slim down;
4. Anti-tumor and anti-aging effects.
Improve listening comprehension.
Oolong tea has the functions of beautifying face, expelling toxin, relaxing bowels, resisting chemical activity and removing reactive oxygen species in cells. Middle-aged and elderly people often drink oolong tea to help keep their hearing.
The protective effect on male hearing is obviously greater than that on female hearing. Although drinking oolong tea is good for hearing, you should not drink too much. The daily tea consumption is 1 ~ 2 cups.
Weight loss effect
Oolong tea has the effect of dissolving fat and losing weight. Because tannic acid, the main component of tea, is closely related to fat metabolism. Oolong tea can reduce the cholesterol content in the blood.
Compared with black tea and green tea, oolong tea can not only stimulate the activity of lipolytic enzymes in pancreas, reduce the absorption of sugar and fatty foods, but also accelerate the increase of body heat production, promote fat burning and reduce the accumulation of abdominal fat.
Therapeutic value of drugs
Oolong tea, as a famous tea unique to China, not only has health care functions such as refreshing the brain, relieving fatigue, promoting fluid production and diuresis, relieving heatstroke, killing bacteria and diminishing inflammation, dispelling cold and relieving hangover, detoxifying and preventing diseases, helping digestion and relieving boredom, losing weight and keeping fit, but also has special functions such as preventing cancer, reducing blood fat and resisting aging.
cancer prevention
On June 5th, 1998, Han Chi, an associate researcher in Toxicology Laboratory of Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, and her assistant Xu Yong conducted an anti-cancer experiment of tea on animals. They fed mice five kinds of tea, such as Anxi Tieguanyin, and at the same time fed them tea with a synthetic purity of more than 99. 8% carcinogen methyl carbazide glue. After three months, the incidence of esophageal cancer in rats was 42-67%, and the average number of tumors in rats with cancer was 2. Two or three. The incidence of esophageal cancer in rats who did not drink tea was 90%, and the average number of tumors in rats with cancer was 5. Two or five kinds of tea in Anxi Tieguanyin have the best anticancer effect. At the same time, they also conducted another experiment, that is, using sodium nitrite and methyl carrageenan as carcinogenic precursors. The results showed that none of the rats in the tea drinking group developed esophageal cancer, and the incidence rate was 100%. This result proves that tea can completely block the endogenous formation of nitrite nitrogen in the body.
Lowering blood lipid
Oolong tea can prevent and alleviate atherosclerosis of aortic blood lipid. Drinking oolong tea can also reduce blood viscosity, prevent erythrocyte aggregation, improve blood hypercoagulability, increase blood fluidity and improve microcirculation. Thrombosis test in vitro also shows that oolong tea can inhibit thrombosis.
Anti-wrinkle
Oolong tea has the same anti-aging effect as vitamin E. Under the condition of taking enough vitamin C orally every day, drinking oolong tea can keep the content of vitamin C in blood at a high level and reduce the excretion of vitamin C in urine. Vitamin C has anti-aging effect. Therefore, drinking oolong tea can enhance the anti-aging ability of human body in many ways.
Three taboos for drinking alcohol
Drinking oolong tea is not only beneficial to human health, but also adds endless fun. But there are three taboos:
First, don't drink on an empty stomach, or you will feel hungry. People call it "tea drunk".
Second, don't drink before going to bed, otherwise it will be difficult to fall asleep;
Third, if you don't drink herbal tea, it will be cold after cooling, which is not good for your stomach.
These three taboos are especially important for people who are new to oolong tea, because oolong tea contains more tea polyphenols and caffeine than other teas.