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　合同実験及び標準化

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タイトル別名
  • Quantitative Determination of IPA and DHA in the Refined Fish Oil by Capillary Gas Chromatography. Collaborative Study and Standardization.
  • 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
  • Collaborative Study and Standardization
  • 合同実験及び標準化

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The authors developed a method for the quantitative determination of icosapentaenoic acid (IPA) and docosahexaenoic acid (DHA) in refined fish oil containing polyunsaturated fatty acids based on data obtained from a laboratory collaborative study. Three kinds of oils were (a) refined fish oil (labels specifying IPA content was 18%), (b) refined fish oil (labels specifying IPA content was 28%) and (c) mixture of (a) and (b) [50 : 50 (wt/wt)]. Methylation of triacylglyceride was carried out in a methanol solution of 2M potassium hydroxide. The tricosanoic acid methyl ester served as the internal standard for determining polyunsaturated fatty acid methyl esters by capillary gas chromatography.<BR>All data were analyzed statistically for determination of intra- and inter-laboratory variation. IPA and DHA values were consistent with intra- and inter-laboratory coefficients of variation less than 3%. The present method is thus shown suitable for determining IPA and DHA in refined fish oil containing polyunsaturated fatty acids in excess.

収録刊行物

  • 日本油化学会誌

    日本油化学会誌 45 (4), 335-339, 1996

    公益社団法人 日本油化学会

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