Oxidation of Ascorbic Acid in the Presence of Copper.
- 1 January 1949
- journal article
- research article
- Published by Danish Chemical Society in Acta Chemica Scandinavica
- Vol. 3 (7), 844-849
- https://doi.org/10.3891/acta.chem.scand.03-0844
Abstract
Ascorbic acid (I) in acetate buffer causes precipitation of Cu2O (II) in the presence of Cu salt concns. of 0.001 [image] or greater. Less than 1 mole O2 was required for each mole I. At pH 5.95, I was oxidized very rapidly and much slower at pH 4.2. Precipitation of II begins above pH 4.5. Protein or amino acids form complex linkages with Cu and prevent II from precipitating, resulting in increase of O2 necessary for oxidation of I.This publication has 5 references indexed in Scilit:
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- Oxidation Processes. XVII.1 The Autoxidation of Ascorbic Acid in the Presence of CopperJournal of the American Chemical Society, 1944
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- On the Mechanism of the Ascorbic Acid—Ascorbic Acid Oxidase Reaction. The Hydrogen Peroxide QuestionJournal of the American Chemical Society, 1942
- Oxidation and Reduction of Vitamin C1Journal of the American Chemical Society, 1942