| 低温冷冻萃取法分离混合脂肪酸中的亚油酸 |
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| 引用本文： | 侯雯雯.低温冷冻萃取法分离混合脂肪酸中的亚油酸[J].粮食科技与经济,2011,36(4):34-36. |
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| 作者姓名： | 侯雯雯 |
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| 作者单位： | 陕西省石油化工研究设计院,陕西西安710054;西北大学化工学院,陕西西安710069 |
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| 摘 要： | 介绍了以冷冻萃取结晶法分离混合脂肪酸中亚油酸,用气-质联用测定含量,得到的最佳工艺条件为：在冷冻时间6 h时,脂肪酸∶溶剂=1∶1,结晶温度梯度：0℃、-25℃、-35℃,亚油酸含量为85.33%,得率为68%。
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| 关 键 词： | 亚油酸 冷冻萃取 分离 |
Separation of Linoleic Acid from Mixed Fatty Acids by Frozen Crystal Extraction |
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| Hou Wenwen.Separation of Linoleic Acid from Mixed Fatty Acids by Frozen Crystal Extraction[J].Grain Technology and Economy,2011,36(4):34-36. |
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| Authors: | Hou Wenwen |
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| Institution: | Hou Wenwen(1.Shaanxi Research and Design Institute of Petroleum and Chemical Industry,Xian,Shaanxi 710054,2.School of Chemical Engineering,Northwest University,Shaanxi 710069) |
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| Abstract: | To describe the method of separating linoleic acid from mixed fatty acid.Mixed fatty acids are esterified into fatty acid methyl esters by two times,GC-MS is used to determine the contents.Llinoleic acid are separated from mixed fatty acids by frozen crystal extraction.The optimum conditions are：freezing time：6 h;fatty acids∶solvent=1∶1;crystallization temperature gradient：0 ℃,-25 ℃,-35 ℃;linoleic acid content as follows：85.33%;yield was 68%. |
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| Keywords: | linoleic acid frozen crystal extraction separation |
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