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Ascorbic acid: A scavenger of superoxide radical
S SOM, C RAHA, I B CHATTERJEE
Published in -
1983
Volume: 5
   
Issue: 4
Pages: 243 - 250
Abstract
The second order rate constant for the reaction between ascorbic acid and superoxide at pH 7.4 using the xanthine-xanthine oxidase system was estimated to be 5.4 x 106 M-1sec-1. The results indicate that the efficacies of superoxide dismutase and ascorbic acid for catalyzing the decay of superoxide radical in animal tissues are similar. The significance of ascorbic acid as a scavenger of superoxide is discussed from the point of view of evolution of ascorbic acid synthesizing capacity in terrestrial vertebrates.
About the journal
JournalActa Vitaminologica et Enzymologica
Publisher-
ISSN0300-8924