Format

Send to

Choose Destination
Acta Vitaminol Enzymol. 1983;5(4):243-50.

Ascorbic acid: a scavenger of superoxide radical.

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 10(6) M-1 sec-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 the terrestrial vertebrates.

PMID:
6324567
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center