Top quality natural tea polyphenol/ green tea extract powder CAS 84650-60-2 CAS NO.84650-60-2

An aqueous solution, powder solid, or crystalline, yellowish to tinged brown, having a astringent taste, easily soluble in water, ethanol, ethyl acetate, and slightly soluble in grease. Good heat and acid resistance, stable in pH 2 ~ 7. Slightly hygroscopic, aqueous pH=3 ~ 4. Browning is easily oxidized under alkaline conditions. Catechins account for about 60% ~ 80% of total tea polyphenols. Among the polyphenols extracted from green tea and its by-products, the content of tea polyphenols was more than 95%, of which catechin was 70% ~ 80%. Flavonoid compounds 4% ~ 10%; Gallic acid 0.3% ~ 0.5%; Amino acids 0.2% ~ 0.5%; Total sugar content: 0.5% ~ 1.0%. The content of chlorophyll is 0.01% ~ 0.05%.

According to the report, tea polyphenols have extensive inhibitory effect on bacteria, typhoid bacillus, paratyphoid bacillus, yellow blood soluble staphylococcus, dysentery, cholera bacteria and other pathogenic bacteria have obvious inhibitory effect, the concentration is 0.08% ~ 0.1%, no inhibitory effect on fungi, yeast, lactic acid bacteria and acetic acid bacteria. It can effectively inhibit the oral cavity caused by dental caries of streptococcus mutans. In addition, tea polyphenols have antioxidant, anti-mutation, anti-cancer, anti-aging, scavenging free radicals, lowering blood pressure and cholesterol and other biological functions.

Tea polyphenols have strong polarity and hydrophilicity. Natural antioxidants. When tea polyphenols encounter FeCl3, they are greenish-black or blue-black precipitates, and some tea polyphenols encounter gelatin and are grayish-white precipitates. Tea polyphenols react with aqueous solutions of heavy metal salts such as 1% aluminum trichloride or basic lead acetate to form grayish-yellow precipitates. It can also be oxidized by potassium permanganate, potassium sulfate and other oxidants to form blue-purple complex with ferrous tartrate.

food field
health care field

pharmaceutical field