Antioxidant Activity of Quercetin against Metmyoglobin-induced Oxidation of Fish Oil-bile Salt Emulsion

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The antioxidative effect of quercetin was exrimined in metmyoglobin-induced oxidation of a fish oil-bile salt emulsion (average diameter of particles; 2.0μm) to evaluate its effectiveness during the digestion of highly oxidizabile oils. The activity of quercetin increased with the lowering of the initial peroxide value (PV) of the oil and its effectiveness was superior to that of α-tocopherol. A synergistic antioxidant effect was observed upon the addition of quercetin and α-tocopherol irrespective of the initial PV of the oils, and quercetin was consumed faster than α-tocopherol. The loss of quercetin was larger than that of α-tocopherol when cumene hydropeioxide and metmyoglobin were mixed in a trimyristin-bile salt emulsion. In an ultrafiltration experiment on emulsitied oil with a membrane filter of 100 nm pore size, the recovery of quercetin in the filtrate was higher than that of α-tocopherol. These data suggest that quercetin was an antioxidant in the digestion of fish oil. The effectiveness seems to come from its distribution in the emulsitied oil, diffrient ffom that of α-tocopherol, and its ability to scavenge radicals generated from the reaction of lipid hydfoperoxides with metmyoglobin.

収録刊行物

  • Bioscience, biotechnology, and biochemistry   [巻号一覧]

    Bioscience, biotechnology, and biochemistry 61(10), 1634-1640, 1997-10-23  [この号の目次]

    社団法人日本農芸化学会

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各種コード

  • NII論文ID(NAID)
    110002678779
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    4326439
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS  J-STAGE 
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