product name: green tea extract
number:cne-018
application: antioxidant , anticarcinogen , anti-inflammatory , and anti-radiation
source: green tea
specification: green TEA POLYPHENOLS 20%-98%; egcg 10%-98%; catechins 20%-90%
egcg
molecular formula: c 22 h 18 o 11
molecular mass: 458.37
cas: 989-51-5
function:
1. strong antioxidant capacity, as natural antioxidants, can scavenge free radicals;
2. anti-tumor, inhibition of capillary split lesion sites;
3. improve cardiovascular circulation;
4. anti-radiation, prevention of skin cancer.
safety concern: excessive intake of green tea extracts containing caffeine has side effects [10]; an excessive concentration may act as a pro-oxidant to damage dna and produce undesirable side effects
dosage information : standardized green tea extract is 90 percent total polyphenols, and 1 capsule equals 5 cups of tea. for a green tea extract standardized for 80 percent polyphenols and 55 percent egcg, a daily dose of 300 to 400 mg green tea extracts is recommended. some green tea extracts may have as little as 15 percent polyphenols, usually these are far less expensive. it should be kept in mind that the various components of unpurified green tea extracts have synergistic effects and therefore are better than any individual tea component. scientists also conclude that tea extracts are better taken between meals in order to avoid decreased iron absorption.
though green tea extracts show potential anticancer capacity - under some conditions by working together with other drugs and suppressing multidrug resistance in cancer cells - they are not suggested for use alone as a chemotherapy agent for cancer treatment