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KMID : 0380619870190020134
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Korean Journal of Food Science and Technology
1987 Volume.19 No. 2 p.134 ~ p.139
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Molecular Species of Triglycerides in Walnut Oil
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Abstract
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The triglycerides of walnut oil were fractionated by high performance liquid chromatography (HPLC) on the basis of partition number (PN). Each triglyceride was finally fractionated on the basis of aryl carbon numbers (CN) by gas-liquid chromatography (GLC). The fatty acids of triglyceride for each PN group were analyzed by GLC. Also, the fatty acid at β-position of glycerol in each PN fraction separated by HPLC was determined by enzymatic hydrolysis with pancreatic lipase. The major friglyceride molecular species of walnut oil were C_(18:2). C_(18:2). C_(18:1)(LLO; 10.9%), C_(18:3). C_(18:2). C_(18:2)(LnLL; 17.6%) and C_(18:2). C_(18:2). C_(18:2)(LLL; 37.3%). The triglyceride molecular species occupied by unsaturated fatty acid at β-position were more than 90%.
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