Structural Determination of Saponins Extracted from Starfish by Fast Atom Bombardment Collision-Induced Dissociation Mass Spectrometry

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Three saponins were extracted and isolated from starfish by reversed-phase high performance liquid chromatography (HPLC), and analyzed by fast atom bombardment mass spectrometry (FAB-MS). Their molecular weight information could be obtained by the presence of abundant [M+Na]<sup>+</sup> ions and weak [M+H]<sup>+</sup> ions in FAB-MS spectra. Moreover, high resolution mass measurements of their [M+Na]<sup>+</sup> ions were performed at the resolution of 10000 to elucidate the element composition of extracted saponins. The collision-induced dissociation (CID) of sodium-adducted molecules [M+Na]<sup>+</sup> yielded diverse product ions <i>via</i> dissociated processes. In the collision-induced dissociation (CID)-MS/MS analysis of [M+Na]<sup>+</sup> ion, the sulfate-containing saponins produced characteristic ions such as SO<sub>4</sub>Na<sup>+</sup>, [NaHSO<sub>4</sub>+Na]<sup>+</sup>, [M+Na—sugar]<sup>+</sup> and [M+Na—2sugar]<sup>+</sup> ions, whereas the sulfate-free compound showed characteristic ions produced by cleavage of sugar moiety and side chain of aglycone. The fragmentation patterns could provide information on the linkage position of sugar groups in aglycone and sulfate groups.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 22(4), 641-644, 2006-04-10

    The Japan Society for Analytical Chemistry

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各種コード

  • NII論文ID(NAID)
    10018124232
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    09106340
  • NDL 記事登録ID
    7872176
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z54-F482
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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