不けん化物のガスクロマトグラフィー/質量分析法による油脂の法化学的な異同識別  [in Japanese] Forensic Discrimination of Unsaponifiables of Fats and Oils Using Gas Chromatography/Mass Spectrometry  [in Japanese]

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Author(s)

Abstract

法化学的分野で,これまで詳細な研究が報告されていなかった油脂の不けん化物に注目し,ガスクロマトグラフィー/質量分析法(GC/MS)を用いて油脂相互間の異同識別を試みた.その結果,不けん化物中からは,動物油と植物油の識別の指標となるステロール類をはじめ,フィトール,ロウ分のけん化より得られた高級アルコールなど様々な種類の物質が検出された.ごま油のセサミン,からし油のカプサイシン,つばき油のスピナステロールなどのように,油脂の種類を特定できる物質も検出できた.分析の結果,植物油では不けん化物のみで32種類すべての油脂の識別ができ,動物油では不けん化物のみでは19種類が13種類に分類可能であった.したがって,本研究の不けん化物のGC/MSは,油脂の異同識別に極めて有効な方法であった.<br>

Fifty-one types of fats and oils were analyzed using gas chromatography/mass spectrometry (GC/MS) of unsaponifiables for developing their forensic discrimination in this study. This method could distinguish vegetable oils and animal fats by the discrimination of sterols. The analytical results showed that sesamin and sesamolin, capsaicine and dyhidrocapsaicine, and spinasterol were characteristic unsaponified compounds useful for the identification of sesame oil, mustard seed oil, and camellia oil, respectively. All 32 types of vegetable oils could be discriminated by comparing of unsaponifiables. Higher alcohols from saponified wax were also useful for the discrimination of fats and oils; 19 types of animal fats were classified into 13 groups only by the analysis of unsaponifiables, because the types of unsaponifiables of animal fats were much fewer than those of vegetable oils. Accordingly, the GC/MS analysis of unsaponifiables in this study was very useful for the discrimination of fats and oils.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 54(11), 1091-1100, 2005-11-05

    The Japan Society for Analytical Chemistry

References:  16

Codes

  • NII Article ID (NAID)
    110002972578
  • NII NACSIS-CAT ID (NCID)
    AN00222633
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    05251931
  • NDL Article ID
    7724958
  • NDL Source Classification
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL Call No.
    Z17-9
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE  NDL-Digital 
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