EGCG: EGCG was found to be the most effective of the green tea catechins in scavenging superoxide anions and hydroxyl radicals, two reactive oxygen species (ROS) implicated in oxidative stress imbalances. The results demonstrated that one molecule of EGCG is capable of trapping ~ 10 molecules of both superoxide anions and hydroxyl radicals.
The antioxidant and pro-oxidant effect of EGCG was investigated in a study involving the comparative scavenging effects of EGCG and ascorbic acid versus superoxide anion. The effects of EGCG on free radical-induced DNA oxidative damage was nox app player pokemon go also investigated. The results demonstrated that EGCG scavenged superoxide radical and hydrogen peroxide in a dose dependent manner and that EGCG had a stronger scavenging activity than ascorbic acid. Results also showed that EGCG had a protective effect on DNA at low concentrations but enhanced oxidative damage at higher concentrations.
 Nanjo F et al (1999) Radical scavenging activity of tea catechins and their related compounds. Bioscience Biotechnology and Biochemistry 63(9)1621-1623.
 Tian B et al (2007) Chemiluminescence analysis of the prooxidant and antioxidant effects of epigallocatechin-3-gallate. Asia Pacific Journal of Clinical Nutrition 16(Supplement 1):153-157.