Selective ABTS Radical-Scavenging Activity of Prenylated Flavonoids from Cudrania tricuspidata

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著者

    • Lee Byong Won LEE Byong Won
    • Division of Applied Life Science (BK21 program), Department of Agricultural Chemistry, Institute of Agriculture & Life Sciences, Gyeongsang National University
    • Lee Jin Hwan LEE Jin Hwan
    • Division of Applied Life Science (BK21 program), Department of Agricultural Chemistry, Institute of Agriculture & Life Sciences, Gyeongsang National University
    • PARK Ki Hun
    • Division of Applied Life Science (BK21 program), Department of Agricultural Chemistry, Institute of Agriculture & Life Sciences, Gyeongsang National University

抄録

The antioxidative properties of five prenylated flavonoids, including new flavanone (<B>2</B>), from the root bark of <I>Cudrania tricuspidata</I> were examined against the ABTS, DPPH, and hydroxyl radicals. In most of the assays to determine their antioxidative properties, the ABTS activity was strongly correlated with DPPH because both methods are responsible for the same chemical property of hydrogen- or electron-donation to the antioxidant. On the other hand, the prenylated flavonoids (<B>1</B>–<B>5</B>) acted differently with both methods; namely, all the prenylated flavonoids strongly scavenged the ABTS radical (IC<SUB>50</SUB><10 μ<small>M</small>), while they were inactive against the DPPH radical (IC<SUB>50</SUB>>300 μ<small>M</small>). Even though isolated 5,7,2′,4′,-tetrahydroxy-6,5′-diprenylflavanone (<B>3</B>) showed weak reducing power (746 mV) by cyclic voltammetry when compared to quercetin (394 mV), both had similar ABTS activity (IC<SUB>50</SUB><5 μ<small>M</small>).

収録刊行物

  • Bioscience, biotechnology, and biochemistry  

    Bioscience, biotechnology, and biochemistry 70(2), 427-432, 2006-02-23 

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018534265
  • 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
    7833475
  • 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  J-STAGE 
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