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Antioxidant Activities of Aminophenols against Oxidation of Methyl Linoleate in Solution

1995; Oxford University Press; Volume: 68; Issue: 2 Linguagem: Inglês

10.1246/bcsj.68.620

1348-0634

Misato Iwatsuki, Erika Komuro, Etsuo Niki,

Phytochemicals and Antioxidant Activities

Abstract The antioxidant activities of 48 kinds of aminophenols, chromanols, indoles, carbazoles, aromatic amines, and related compounds were assessed in the oxidations of methyl linoleate in acetonitrile solution induced by azo radical initiator. Chromanols, aminochroman and p-phenylenediamines exhibited strong antioxidant activity. Indole and carbazole did not act as antioxidant per se, but those having either amino or hydroxy group as substituent at the para position acted as potent antioxidant. Amino-substituted compounds were in general more potent than hydroxy-substituted ones. These results were interpreted by both polar and resonance effect.