Formation of a Precursor of the Free Radical Species in the Reaction of Dehydroascorbic Acid with Amino Acids |
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| Authors: | Midori Yano Tateki Hayashi Mitsuo Namiki |
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| Affiliation: | Department of Food Science and Technology, Nagoya University, Chikusa-ku, Nagoya |
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| Abstract: | A precursor of a known long life free radical species which gives a triplet ESR signal was detected among the reaction products of dehydroascorbic acid and amino acids. Experimentally, this compound was transformed to the radical species by dilution with 1: 1 pyridinewater or some buffer solutions of pH 5~7. The yield of the precursor was significantly improved by the addition of ascorbic acid to the reaction system. |
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