What is green tea?

Green tea is one of the main tea leaves in China, which refers to a beverage made from the new leaves or buds of tea trees without fermentation, and through the processes of enzyme fixation, shaping and drying. The color of the finished product and the brewed tea soup retain the green style of new tea. Drinking green tea regularly can prevent cancer, reduce fat and lose weight, and also reduce the harm of nicotine to smokers.

Without fermentation, green tea retains the natural substances of fresh leaves, and contains many nutrients such as tea polyphenols, catechins, chlorophyll, caffeine, amino acids and vitamins. These natural nutrients in green tea have special effects of anti-aging, anti-cancer, sterilization and anti-inflammation, which are beyond the reach of other teas.

Green tea is a kind of tea made from suitable new shoots of tea trees through typical technological processes such as enzyme fixation, rolling and drying. Its dry tea color and brewed tea soup and tea leaves are mainly green, hence the name green tea. Green tea is made by deactivating fresh leaves at high temperature, killing various oxidases, keeping tea green, and then rolling and drying. Clear soup and green leaves are the same characteristics of green tea quality.

China produces all kinds of green tea. Henan, Guizhou, Jiangxi, Anhui, Zhejiang, Jiangsu, Sichuan, Shaanxi (southern Shaanxi), Hunan, Hubei, Guangxi and Fujian are the main green tea producing provinces in China.

Efficacy and function of green tea

Anti-wrinkle

Antioxidants contained in green tea help to fight aging. Because in the process of human metabolism, if it is over-oxidized, it will produce a lot of free radicals, which are easy to age and cause cell damage. SOD (Superoxide Dismutase) is a kind of free radical scavenger, which can effectively remove excess free radicals and prevent the harm of free radicals to human body. Catechins in green tea can significantly improve SOD activity and scavenge free radicals.

Green tea antibacterial

Studies have shown that catechins in green tea can inhibit some bacteria that cause human diseases without harming the proliferation of beneficial bacteria in the intestine, so green tea has the function of whole intestine.

Lowering blood lipid

Animal experiments made by scientists show that catechins in tea can reduce total cholesterol, free cholesterol, low-density lipoprotein cholesterol and triglycerides in plasma, and at the same time increase high-density lipoprotein cholesterol. Human experiments show that it can inhibit platelet aggregation and reduce the incidence of arteriosclerosis. Green tea contains flavonol, which has antioxidant effect, prevents thrombosis and platelet aggregation, and reduces cardiovascular diseases.

Lose weight and fat

Green tea contains theophylline and caffeine, which can activate protein kinase and triglyceride lipolytic enzyme through multiple functions, reduce the accumulation of fat cells, and thus achieve the effect of losing weight.

Prevent dental caries and remove bad breath.

Green tea contains fluorine, in which catechins can inhibit the action of cariogenic bacteria and reduce the occurrence of dental plaque and periodontitis. Tannic acid contained in tea has bactericidal effect, which can prevent food residues from breeding bacteria, so it can effectively prevent bad breath.

cancer prevention

Green tea can inhibit some cancers, but its principle is limited to the inference stage. Drinking more tea is bound to have a positive encouraging effect on preventing cancer.

Whitening and UV protection

Experts found in animal experiments that catechins in green tea can resist skin cancer caused by UV-B.

Can improve indigestion.

Recent research reports show that green tea can help improve indigestion, such as acute diarrhea caused by bacteria, and drinking a little green tea can alleviate the condition.