Comparative studies on derivatization methods of single or mixed fatty acids

Tao Wang; JiNa Lim; SeongHo Choi; HanSeok Kang; HongGu Lee

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Comparative studies on derivatization methods of single or mixed fatty acids

机译：单一或混合脂肪酸衍生化方法的比较研究

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This study aimed to evaluate the methylation performances of three reagents (3 N HCl-MeOH, 14% BF3-MeOH, and 24 N H2SO4-MeOH) on single or mixed fatty acids. Results showed that 24 N H2SO4-MeOH (93.00%) had the best cis-9, trans-11 CLA methylation performance compared with that of 3 N HCl-MeOH (7.96%) or 14% BF3-MeOH (65.49%). There were no obvious differences in the composition of major fatty acids in soybean oil or extruded full-fat linseed after methylation by these reagents. On the contrary, the individual fatty acids showed various responses to these three reagents in chicken breast meat and chicken drum stick. In milk, no obvious differences were observed except for cis-9, trans-11 CLA. These data demonstrate that the methylation performances of the three reagents varied with the kinds of sample origins to be analyzed. Therefore, prudent careful selection of the methylation reagent should be carried out before the analysis.

机译：这项研究旨在评估三种试剂（3 N HCl-MeOH，14％BF3-MeOH和24 N H2SO4-MeOH）在单一或混合脂肪酸上的甲基化性能。结果表明，与3 N HCl-MeOH（7.96％）或14％BF3-MeOH（65.49％）相比，24 N H2SO4-MeOH（93.00％）具有最佳的顺式9，反式11 CLA甲基化性能。用这些试剂甲基化后，大豆油或膨化全脂亚麻籽中的主要脂肪酸组成没有明显差异。相反，在鸡胸肉和鸡腿棒中，个别脂肪酸对这三种试剂表现出不同的反应。在牛奶中，除顺式9，反式11 CLA外，未观察到明显差异。这些数据表明，三种试剂的甲基化性能随待分析样品来源的种类而变化。因此，在分析前应谨慎选择甲基化试剂。

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《Food Science and Biotechnology》 |2013年第6期|1573-1579|共7页
作者
Tao Wang; JiNa Lim; SeongHo Choi; HanSeok Kang; HongGu Lee;
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作者单位

Department of Animal Science and Technology College of Animal Bioscience Technology Konkuk University">(1);

College of Animal Science and Technology Jilin Agricultural University">(2);

Department of Animal Science and Technology College of Animal Bioscience Technology Konkuk University">(1);

Department of Animal Sciences Chungbuk National University">(3);

Department of Animal Science College of Natural Resources and Life Science Pusan National University">(4);

Department of Animal Science and Technology College of Animal Bioscience Technology Konkuk University">(1);

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methylation performance; 3 N HCl-MeOH; 14 BF3-MeOH; 24 N H2SO4-MeOH;

机译：甲基化性能3 N HCl-MeOH;14％BF3-MeOH;24 N硫酸-甲醇;

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3. An improved derivatization method for sensitive determiantion of fatty acids by high-performance liquid chromatogra-hy using 9-(2-hydroxylethyl)-carbazole as derivatization reagent with fluorescence detection [J] . Jinmao You, Weibing Zhang, Yukui Zhang Chromatographia . 2001,第5a6期

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4. Study on the Determination Methods of Free Fatty Acids in Leather [C] . LUO Xiaomin, XIE Xing, LI Pengni Proceedings of the 12th international wool research conference.;vol. 2. . 2010

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6. Single derivatization method for routine analysis of bacterial whole-cell fatty acid methyl esters including hydroxy acids. [O] . L T Miller 1982

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Comparative studies on derivatization methods of single or mixed fatty acids

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