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Green tea is the second largest beverage demanded by consumers worldwide. Used in China and India for its medicinal effects. There are several compounds extracted from green tea including catechins which contain an enormous amount of hydroxyphenols that are easily oxidized, congregated, and contracted, which explains its good anti-oxidation effect.

Anti-oxidation effect of Green Tea Extract 25-100 times as strong as those of vitamin C and E. This extract prevents cardiovascular disease, lowers the risk of cancer, and decreases blood sugar and blood pressure, as well as viruses. In the food industry, the anti-oxidation agent is used for preserving food and cooking oils.

Active ingredients

Tea leaves mainly contain caffeine, theophylline, theobromine, choline, xanthines, flavonoids and their glycoside compounds, tea blends, catechins, multiple vitamins, proteins, and amino acids. Tea polyphenols, also known as tea tannins and tea tannins, are the general term for a class of polyhydroxy phenolic compounds contained in tea. The content of tea thousand products is generally 15%-30%.

Extraction processing method

Green Tea Extract can be extracted with water, alcohol, etc. by conventional extraction methods, and then concentrated to dryness. If water is used as the solvent for extraction, the extraction yield is about 20%, the yield for 50% alcohol extraction is about 25%, and the yield for 95% alcohol extraction is about 14%.

Pharmacology

Green Tea Extract has antibacterial properties. The MIC value for Staphylococcus aureus, Bacillus, Streptococcus, etc. is 400μg/mL, but it has no effect on Pseudomonas Aeruginosa and Candida albicans. The tea polyphenols in tea extracts have strong antioxidant and physiological activities. For the elimination of DP.PH free radicals, 1g of dry leaf water extract is equivalent to 36.11 μmol of Trolox.

Application in cosmetics&skin care products

Green Tea Extract has an inhibitory effect on caspase. Caspase is the core molecule of cell apoptosis. Inhibiting it means prolonging the life of cells. Combining the antioxidant properties of tea extracts has an effect on human free radicals. Elimination, inhibition of two metalloproteinases, and inhibition of collagenase indicate that tea extract is an anti-wrinkle and anti-aging additive in cosmetics; tea extract can still be used as a skin whitening agent, weight loss agent, anti-inflammatory agent, and odor suppressor.