Effects of active oxygen scavengers on the peroxidation of linoleic acid catalyzed by dehydro-L-ascorbic acid or its degradation products.

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概要

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• The addition of 1, 4-diazabicyclo-[2, 2, 2] octane (DABCO) (100mM) or 1, 2, -dihydroxybenzene-3, 5-disulfonic acid (Tiron) (1mM) to a reaction mixture containing 10mM linoleic acid (LA), 20% EtOH, and 135μM dehydroascorbic acid (DHA) as a catalyst suppressed LA per-oxidation, but the addition of mannitol (100mM), uric acid (100μM), and catalase (6.5 units) did not. DHA or 2, 3-diketo-L-gulonic acid (DKG) accelerated LA peroxidation, but the splitting products of DHA did not affect LA peroxidation. These results suggest that some specific radicals are liberated in the degradation of DHA or DKG.

• 財団法人 学会誌刊行センターの論文

著者

• 高木 正之助

  Department of Agricultural Chemistry, College of Agriculture, University of Osaka Prefecture

• 森田 尚文

  Department of Agricultural Chemistry, College of Agriculture, University of Osaka Prefecture

• 小野寺 裕

  Department of Agricultural Chemistry, College of Agriculture, University of Osaka Prefecture

• 宮本 郁生

  Department of Agricultural Chemistry, College of Agriculture, University of Osaka Prefecture

関連論文

• Effects of lipophilic derivatives of L-ascorbic acid and dehydro-L-ascorbic acid on the peroxidation of linoleic acid in neutral phosphate buffer containing alcohol.
• Effects of active oxygen scavengers on the peroxidation of linoleic acid catalyzed by dehydro-L-ascorbic acid or its degradation products.

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