キャピラリーガスクロマトグラフィーによる精製魚油中のIPA及びDHAの定量 基礎的検討

書誌事項

タイトル別名
  • Quantitative Determination of IPA and DHA in the Refined Fish Oil by Capillary Gas Chromatography. Fundamental Study.
  • キャピラリーガス クロマトグラフィーニヨル セイセイ ギョユチュウ ノ IPA
  • Fundamental Study
  • 基礎的検討

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抄録

Icosapentaenoic acid (IPA) and docosahexaenoic acid (DHA) in five purified fish oils were determined by gas chromatography (GC).<BR>These food components have recently drawn public attention, so the results were expressed as mg/g.<BR>A DB-WAX capillary column was used for the GC, due to its greater separation efficiency. The esterification was compared using both the boron trifluoride-methanol (BF3-methanol) method and the potassium hydroxide-methanol (KOH-methanol) method. The IPA content determined by the KOH-methanol method was found to be approximately 15% higher than by the BF3-methanol method. The DHA content by the KOH-methanol method was also higher by 5%. Determinations of IPA and DHA by both methods showed an intra-laboratory variation of less than 2.5%.<BR>These experimental data showed that IPA and DHA in refined fish oils can be accurately determined by capillary column GC and the esterification using KOH-methanol method.

収録刊行物

  • 日本油化学会誌

    日本油化学会誌 45 (4), 351-354, 1996

    公益社団法人 日本油化学会

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