Everyone has their own story. Every cup of tea has its own meaning. How much you expect from tea, how much tea will give you. The tea in the cup, and taste and pray; the path of life, and do and cherish. Drink more tea, the tea polyphenols in the tea will bring you a lot of unexpected things.
Chinese Name: Tea Polyphenols
Nickname: tea tannin, tea tannin
Chemical formula: c17h19n3o
Inclusions: flavanols, anthocyanins, flavonoids, flavonols and phenolic acids
Important content: flavanols (catechins), accounting for about 70% of the total amount of tea polyphenols
Features: It is one of the main components that form the color and fragrance of tea, and it is also one of the main components of health care functions in tea.
There are two main factors that affect the content of tea polyphenols in finished tea, one is fresh leaves, and the other is technology.
What factors affect the polyphenol content of tea in fresh leaves:
1. From the perspective of the whole tea plant, the highest content of tea polyphenols is the new shoots, followed by old leaves, stems, and roots, and the content in the roots is low.
2. In the new shoots, the tea polyphenol content of the buds is lower than that of the first leaf, and from the first leaf, the content decreases with the increase of the leaf position.
3. In general, if the temperature is high, the light is strong or the light time is long, the content of tea polyphenols will increase, and vice versa, it will decrease. Therefore, tea grown in the same environment, summer tea has the highest content of tea polyphenols, followed by autumn tea, and spring tea is the lowest.
Chinese tea is divided into six major tea categories because of the different processing technology and fermentation degree, of which only green tea belongs to non-fermented tea, white tea and yellow tea belong to light fermented tea, oolong tea is semi-fermented tea, and black tea black tea is fully fermented tea and post-fermented tea. Since green tea does not undergo fermentation and retains more natural substances, the tea with the highest polyphenol content is green tea. And like black tea is a fully fermented tea, so the polyphenol content of tea is the least.
1. Tea polyphenols can strongly remove harmful free radicals, block the lipid peroxidation process, and improve the activity of enzymes in the human body.
2. Flavanol compounds in tea polyphenols can stimulate renal vasodilation, increase blood flow to the kidneys, thereby increasing the filtration rate of glomeruli and eliminating lactic acid in the urine.
3. Tea polyphenols can promote the absorption of vitamin C by the human body.
1. Helps to delay aging.
Tea polyphenols have a good antioxidant capacity, according to research on the antioxidant capacity of tea polyphenols and onions antioxidant capacity is similar. Tea polyphenols are scavenging elements of free radicals in the human body. Only a small number of tea polyphenols are needed to scavenge a large number of free radicals in the human body. Significantly higher than similar products. Tea polyphenols also have a reaction to block the excessive oxidation of fatty substances, so that the active enzymes are well removed.
2. Helps prevent and fight cancer.
According to studies, tea polyphenols have a good ability to block carcinogens such as nitrite. And it has the ability to directly damage cancer cells, but also to improve the immunity of our body. It has a significant effect on the prevention and treatment of gastrointestinal diseases and gastric cancer.
3. Help prevent and treat radiation damage.
Tea polyphenols are known as the strongest radiation resistant substances, because tea polyphenols and its oxidizing substances can absorb the damage caused by radioactive substances very well.
4. It helps inhibit and resist viral bacteria.
Tea polyphenols also have strong antibacterial and antiviral properties. It has a good bactericidal effect on pathogen bacteria, which can be said to be a good therapeutic effect for patients with inflammation.
5. It is helpful for beauty and skin care.
Tea polyphenols are water-soluble substances, so if you want to use it to whiten your skin or skin care, you can use tea polyphenols to wash your face after soaking water. Not only can it clear the excess oil on the face, but also tighten the pores to achieve the effect of whitening. The antioxidant and anti-aging effects on the skin are very powerful.
6. The effect of preventing caries and fixing teeth and removing bad breath
Tea polyphenols can kill lactic acid bacteria and other carious bacteria present in the tooth gap, and have the effect of inhibiting glucose polymerase activity, so that the bacteria cannot implant on the teeth, effectively interrupting the process of caries formation. Protein foods that remain between the teeth become a matrix for the proliferation of spoilage bacteria, and tea polyphenols can kill such bacteria.
(1) Cancer
Green tea and cancer prevention are not new topics for a long time. Tea polyphenols can scavenge harmful free radicals, block the lipid peroxidation process, improve the activity of enzymes in the human body, thereby playing an anti-mutation and anti-cancer effect. According to relevant data, the tea polyphenols (mainly catechin compounds) in tea are beneficial for the prevention and adjuvant treatment of various cancers such as stomach cancer and bowel cancer.
(2) Prevention and treatment of stroke
Tea polyphenols have the effect of curbing the production of lipid peroxide, can eliminate vasospasm, maintain the elasticity of the vascular wall, increase the effective diameter of blood vessels, and reduce blood pressure through vasodilation, thereby effectively preventing stroke.
(3) Antithrombotic
The increase of plasma fibrinogen can cause the aggregation of red blood cells, increase the viscosity of the blood, thereby promoting the formation of blood clots. In addition, the increase of phospholipids and cholesterol in the lipids of the cell membrane will reduce the deformation ability of red blood cells, seriously affect the perfusion of microcirculation, increase blood viscosity, stasis of blood flow in capillaries, and aggravate red blood cell aggregation and thrombosis.
(4) High blood sugar
Tea polyphenols have a regulatory effect on the body's glucose metabolism disorders, can reduce blood sugar levels, thereby effectively preventing and treating diabetes.
(5) Scurvy
Tea polyphenols can promote the body's absorption of vitamin C, thereby effectively preventing and treating scurvy. Drinking tea makes people healthy, largely thanks to the action of tea polyphenols. Healthy living starts with a cup of tea.
Floating life is not there, the tea is fragrant, pour a bay of water, take a scoop of tea, into the pot out of the soup thick and sweet. Admire the beauty of it, smell and delight it.