食品科学 ›› 2012, Vol. 33 ›› Issue (14): 223-227.

• 分析检测 • 上一篇    下一篇

气相色谱法测定海豹油中EPA、DPA、DHA含量的方法学研究

杨宜婷,张晓燕*,区海燕   

  1. 无限极(中国)有限公司
  • 收稿日期:2011-06-24 修回日期:2012-06-08 出版日期:2012-07-25 发布日期:2012-07-27
  • 通讯作者: 张晓燕 E-mail:musicworm_385@sina.com

Determination of EPA, DPA and DHA in Seal Oil by Gas Chromatography

  • Received:2011-06-24 Revised:2012-06-08 Online:2012-07-25 Published:2012-07-27

摘要: 目的:建立气相色谱检测海豹油中EPA、DPA和DHA的方法。方法:采用氢氧化钾-甲醇酯化法将海豹油中的脂肪酸快速、有效的转化成脂肪酸甲酯,并通过方法学实验验证其可行性。结果:EPA、DPA和DHA甲酯含量在10~2000μg/mL范围内,峰面积与EPA、DPA和DHA甲酯含量呈良好线性关系;加样回收率在96.93%~103.38%之间,相对标准偏差小于2%;结论:该方法可以快速、准确地同时测定EPA、DPA和DHA含量。

关键词: 海豹油, EPA, DPA, DHA, 含量测定

Abstract: Objective: To establish a method for determining ω-3 polyunsaturated fatty acids including eicosapentaenoic acid (EPA), docosapentenoic acid (DPA) and docosahexaenoic acid (DHA) in seal oil. Methods: Fatty acids in seal oil were methyl esterified using a KOH-methanol solution. The applicability of the developed method was validated. Results: This method revealed an excellent liner relationship for methylated EPA, DPA and DHA in the concentration range of 10-2000μg/mL with recovery rate of 96.93%-103.38% and RSD less than 2%. Conclusion: This method is simple, rapid, accurate and suitable for the analysis of fatty acids in seal oil.

Key words: seal oil, eicosapentaenoic acid (EPA), docosapentenoic acid (DPA), docosahexaenoic acid (DHA), content determination

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