Chinese people love drinking tea not only for its refreshing taste, but also for the healthy living habits they have developed over the years. But do you know what ingredients in tea play a role in benefiting the body and mind? Today, let’s talk about the treasure of tea -tea polyphenols.
1. What are tea polyphenols?
Definition: The general name for polyphenols in tea.
Contains: flavanols, anthocyanins, flavonoids, and phenolic acids, etc.
Important content: flavanols (catechins), accounting for about 70% of the total tea polyphenols.
Features: It is one of the main components that contributes to the color and aroma of tea, and is also one of the main components with health-care functions in tea.
2. How much is the content of tea polyphenols?
Not all teas have the same polyphenol content. The deeper the degree of fermentation of tea, the more tea polyphenols are converted into other substances, and the content of tea polyphenols will decrease accordingly.
Green tea is not fermented and is rich in tea polyphenols. According to data, the content of tea polyphenols in green tea is 144% higher than that of black tea of the same quality, and about 59% higher than that of oolong tea of the same quality.
In addition to the type, the quality of tea also affects the content of tea polyphenols. For example, when making tea, the younger the tea leaves, the better the quality. Because young leaves grow at the top, closest to sunlight, they can fully carry out photosynthesis and synthesize more phenolic substances.
3. What are the uses of tea polyphenols?
➀ Anti-aging
Tea polyphenols have strong antioxidant properties and physiological activity. They are scavengers of free radicals in the human body and can inhibit lipoxygenase and lipid peroxidation in skin mitochondria, thus having anti-aging effects. Research shows that 1 mg of tea polyphenols is as effective as 9 micrograms of superoxide dismutase (SOD) in scavenging excess free radicals that are harmful to the human body, which is much higher than other similar substances. The antioxidant activity of tea polyphenols is significantly 18 times stronger than that of vitamin E, and it has a synergistic effect with vitamins C and E.
➁ Relieve allergies
Polyphenols can strongly inhibit the release of histamine. Experiments have shown that tea polyphenols are 2 to 10 times more effective in inhibiting allergy and skin allergic reactions than currently commonly used anti-allergic drugs.
➂ Detoxification
Tea polyphenols have a strong adsorption effect on heavy metals and can form complexes with heavy metals to produce precipitation, which is beneficial to reducing the toxic effects of heavy metals on the human body. In addition, tea polyphenols also have the effect of improving liver function and diuresis, and therefore have a good anti-alkaloid poisoning effect.
➃ Aids digestion
The caffeine in tea polyphenols can increase the secretion of gastric juice, help digestion, and enhance the ability to break down fat. This is the truth behind the so-called “eating for a long time makes you thin”.
➄ Radiation protection
Tea polyphenols and their oxidation products have excellent anti-radiation functions and can absorb radioactive substances and prevent them from spreading in the human body. They are called natural ultraviolet filters.
➅ Mouthguard
Tea polyphenols can kill lactic acid bacteria and other caries bacteria present in the gaps between teeth, inhibit glucose polymerase activity, and effectively interrupt the process of caries formation. The protein food remaining in the gaps between teeth becomes a matrix for the proliferation of putrefactive bacteria, and tea polyphenols can kill such bacteria.
➆ Beauty
Tea polyphenols are water-soluble substances. Washing your face with it can remove facial greasiness, shrink pores, have disinfecting, sterilizing, anti-skin aging, and reduce skin damage caused by ultraviolet radiation in the sun.
Which diseases are tea polyphenols good for?
➀ Cancer
Green tea and cancer prevention are not new topics. Tea polyphenols can scavenge harmful free radicals, block the lipid peroxidation process, and increase the activity of enzymes in the human body, thus having anti-mutation and anti-cancer effects. According to relevant data, tea polyphenols (mainly catechin compounds) in tea are beneficial to the prevention and auxiliary treatment of various cancers such as gastric cancer and intestinal cancer.
➁ High blood pressure
Tea polyphenols have a strong inhibitory effect on converting enzyme activity, and thus can reduce or maintain blood pressure stability.
➂ Arteriosclerosis
Tea polyphenols, especially the catechins ECG and EGC in tea polyphenols and their oxidation products theaflavin, help inhibit the proliferation of atherosclerotic plaques. It reduces the fibrinogen that enhances the viscosity of blood coagulation and clears blood coagulation, thereby lowering blood lipids and preventing atherosclerosis of the liver and coronary arteries.
➃ High blood sugar
Tea polyphenols have a regulating effect on the body’s glucose metabolism disorders and can reduce blood sugar levels, thereby effectively preventing and treating diabetes.
➄ Stroke
Tea polyphenols can inhibit the production of lipid peroxides, eliminate vasospasm, maintain the elasticity of blood vessel walls, increase the effective diameter of blood vessels, and reduce blood pressure through vasodilation, thus effectively preventing stroke.
➅ Thrombosis
Tea polyphenols have a protective and repairing effect on the deformation ability of red blood cells, and can easily form a complex with thrombin to prevent fibrinogen from turning into fibrin. In addition, tea polyphenols can effectively inhibit the increase in cholesterol levels in plasma and liver, promote the excretion of lipids and bile acids from the body, thereby effectively preventing the formation of thrombosis.
➆ Asthma
Tea polyphenols can inhibit allergic reactions caused by active factors such as antibodies, epinephrine, enzymes, etc., and have significant effects on allergic diseases such as asthma.
➇ Constipation
As the saying goes: “A cup of tea in the morning makes the day more prosperous.” Tea polyphenols can stimulate gastrointestinal reactions and accelerate large intestine peristalsis to treat constipation.
⑨ Diarrhea
Tea polyphenols improve the body’s comprehensive immunity, inhibit and kill various harmful pathogenic bacteria that cause diarrhea, and relieve gastrointestinal tension to achieve anti-inflammatory and anti-diarrheal effects.
⑩ Scurvy
Tea polyphenols can promote the body’s absorption of vitamin C, thereby effectively preventing and treating scurvy. Drinking tea makes people healthy, largely because of tea polyphenols. A healthy life starts with a cup of tea.
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