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The Scavenging Effects of some Natural Products on Superoxide and Hydroxyl Radicals

HAN Qiang LIN Hui fen ZHU Lin li (Shanghai daily Chemical Industrial Research Institute,Shanghai 200062,China)  
Cutaneous aging is closely related with free radicals.In this paper,by colorimetry we detected the scavenging effects of some natural products on superoxide radicals (O ÷ 2) and hydroxyl radicals (·OH),which generated from the autoxidation of pyrogallol and Fenton reaction.The results showed that of these natural products had scavenging activity,in which Rutin,Quercetin and Total Flavonoids of Astragalus (TFA) were much stronger.
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