Antioxidant effects of chlorophyll and pheophytin on the autoxidation of oils in the dark. II. The mechanism of antioxidative action of chlorophyll
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- Yasushi Endo
- Department of Food Chemistry, Faculty of Agriculture Tohoku University 1‐1 Amamiyamachi‐Tsutsumidori 980 Sendai Japan
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- Riichiro Usuki
- Department of Food Chemistry, Faculty of Agriculture Tohoku University 1‐1 Amamiyamachi‐Tsutsumidori 980 Sendai Japan
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- Takashi Kaneda
- Department of Food Chemistry, Faculty of Agriculture Tohoku University 1‐1 Amamiyamachi‐Tsutsumidori 980 Sendai Japan
抄録
<jats:title>Abstract</jats:title><jats:p>To understand the mechanism of the antioxidant effect of chlorophyll on the autoxidation of oils in the dark, antioxidant activities of several derivatives of chlorophyll were compared. Antioxidant activities were observed in chlorophyll derivatives such as protopor‐phyrin methyl ester and its magnesium chelated compound. Porphyrin seems to be an essential chemical structure for the antioxidant activity of chlorophyll. Chlorophyll did not decompose the hydroperoxides, but reduced free radicals such as 1,1‐diphenyl‐2‐picrylhydrazyl. Electron spin resonance spectrum of the π‐cation radical was recorded during the oxidation of chlorophyll in methyl linoleate solution. These observations suggest that chlorophyll may act as a hydrogen donor to break the chain reaction.</jats:p>
収録刊行物
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- Journal of the American Oil Chemists' Society
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Journal of the American Oil Chemists' Society 62 (9), 1387-1390, 1985-09
Wiley
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詳細情報 詳細情報について
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- CRID
- 1362544418321713792
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- NII論文ID
- 80002579831
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- ISSN
- 15589331
- 0003021X
- http://id.crossref.org/issn/00027863
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