2016
DOI: 10.15826/analitika.2016.20.4.002
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GC and HPLC methods’ effectiveness comparison for the differentiation of seed oils containing moieties of the isomeric octadecatrienoic acids

Abstract: В работе сопоставлена эффективность метода газохроматографического анализа метиловых эфиров, полученных из растительных масел (I) и обращенно-фазовой высокоэффективной жидкостной хроматографии триацилглицеринов (ТАГ) (II) для дифференциации четырех масел, в состав которых входят радикалы четырех изомерных не сопряженных октадекатриеновых (С18:3) высших жирных кислот. Показано, что в методе I удерживание метиловых эфиров изомерных С18:3 кислот возрастает в ряду: γ-линоленовая (С18:3 6Z9Z12Z)-пиноленовая (С18:3 … Show more

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“…The priority methods for controlling the quality and authenticity of fats and oils are capillary gas-liquid chromatography of fatty acids (FAs) and reversedphase HPLC of triacylglycerols contained in the fat phase [8][9][10][11][12][13][14][15][16][17][18]. Triacylglycerols of the considered liquid vegetable oils contain totally from 75 to 90% of unsaturated fatty acids (oleic, linoleic, and linolenic), 5-20% of saturated fatty acids (palmitic and stearic), and various amounts of minor saturated and/or unsaturated fatty acids [8,9].…”
Section: Articlesmentioning
confidence: 99%
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“…The priority methods for controlling the quality and authenticity of fats and oils are capillary gas-liquid chromatography of fatty acids (FAs) and reversedphase HPLC of triacylglycerols contained in the fat phase [8][9][10][11][12][13][14][15][16][17][18]. Triacylglycerols of the considered liquid vegetable oils contain totally from 75 to 90% of unsaturated fatty acids (oleic, linoleic, and linolenic), 5-20% of saturated fatty acids (palmitic and stearic), and various amounts of minor saturated and/or unsaturated fatty acids [8,9].…”
Section: Articlesmentioning
confidence: 99%
“…Triacylglycerols of the considered liquid vegetable oils contain totally from 75 to 90% of unsaturated fatty acids (oleic, linoleic, and linolenic), 5-20% of saturated fatty acids (palmitic and stearic), and various amounts of minor saturated and/or unsaturated fatty acids [8,9]. The componentwise identification of triacylglycerols in various plant materials by HPLC made it possible to obtain a large database of chromatographic data [8][9][10][11][12][13][14][15][16][17][18], which was used in this work to interpret chromatograms. We used the incremental approach developed by Deineka et al [10][11][12][13][14][15] based on the idea of the additivity of contributions (increments) of functional groups to the adsorbate retention [15].…”
Section: Articlesmentioning
confidence: 99%
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