Reaction of urates and other antioxidants with galvinoxyl |
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| Authors: | Robert C. Smith J.Howard Hargis |
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| Affiliation: | 1. Department of Animal and Dairy Sciences, Alabama Agricultural Experiment Station, U.S.A.;1. Department of Chemistry, Auburn University, Alabama 36849 U.S.A. |
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| Abstract: | Uric acid, 3-ribosyluric acid, 1-methyluric acid, 1,3,7-trimethyluric acid, 2,8-dihydroxyadenine, and 2-imidazolone reacted with galvinoxyl, a stable free radical, to form galvinol. The reaction was followed by the decrease in absorbance at 550 nm of an ethanolic solution of galvinoxyl. Related compounds such as inosine, xanthosine, 2-hydroxybenzimidazole, lumichrome, and lumazine did not react with galvinoxyl. The data reported support the proposal that urates are important antioxidants and free-radical scavengers. |
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| Keywords: | To whom correspondence should be addressed. |
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