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The ESR and UV-VIS Studies on the Reaction Between Ascorbic Acid and Iron Ion
Ling-Jun Bai1, Jian-Ying Wang, Nai-Jie Cui
1Chemistry Department, Nankai University, Tianjin 300071, China.
Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao Acta Biochimica Et Biophysica Sinica
|January 1, 1997
Abstract:
With ESR spin trapping methods and UV-VIS spectrometry, the reaction between ascorbic acid and iron ion was studied. It was found that one mole of ascorbic acid was able to reduce four moles of ferric ions, but no ESR signal of any radical was observed. Based on the above experiments the mechanisms of these reactions were suggested and effects of ascorbic acid in antioxidation and the promoting of oxidation were discussed.