Epigallocatechin gallate (EGCG) is a component extracted from Chinese green tea. As the main active and water-soluble component of green tea, EGCG has the highest content of catechin, accounting for 9%-13% of gross weight of green tea. Due to its special stereochemical structure, EGCG has very strong antioxidant activity. The antioxidant activity of EGCG is at least 100 times greater than that of vitamin C and 25 times greater than that of vitamin E. EGCG protects cells and DNA from damage believed to be linked to cancer, heart disease and other serious diseases. These benefits are attributed to its ability to scavenge oxygen free radicals (antioxidants).
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Epigallocatechin gallate plays an important role in cardiovascular disease. In addition, it is also used as a reversal agent of multidrug resistance in tumors, improving the sensitivity of cancer cells to chemotherapy and reducing toxicity to the heart.
EGCG is the main component of green tea polyphenols and the main component of green tea catechins, which include EGCG, EGC, ECG, EC, GCG, etc., among which the antioxidant activity is EC successively. Many studies have shown that EGCG has anti-free radical DNA damage, anti-radiation and ultraviolet radiation, and prevent oil peroxidation. Reduce the content of low-density cholesterol, ultra-low-density cholesterol and triglycerides in serum, interfere with the signaling required for the survival of cancer cells, inhibit carcinogens in the diet, work with other enzymes and antioxidants in the intestine, liver, and lung to prevent the activity of certain carcinogens, remove free radicals, resist the effects of pollution, sun exposure and smoking, prevent skin aging and wrinkling, etc.
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