| 高纯度共轭亚油酸的制备 |
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| 引用本文： | 徐达,陈华勇,罗日明,王卫飞,杨博. 高纯度共轭亚油酸的制备[J]. 食品与发酵工业, 2011, 37(6) |
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| 作者姓名： | 徐达 陈华勇 罗日明 王卫飞 杨博 |
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| 作者单位： | 1. 华南理工大学生物科学与工程学院,广东广州,510006
2. 华南理工大学轻工与食品学院,广东广州,510640 |
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| 基金项目： | 广东省科技攻关项目(2009B020201007); 广州市重大科技攻关项目(2009A1-E021) |
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| 摘 要： | 以红花籽油为原料,比较了2种高纯度共轭亚油酸(CLA)的制备方法:(1)碱法异构化-尿素包合、(2)皂化-尿素包合-碱法异构化。针对每种方法确定了尿素包合和碱法异构化的最佳工艺条件,并对所得的CLA异构体组成进行了分析。研究表明:按照方法(2)先获得高纯度亚油酸(LA),再对其碱法异构化制备CLA可以得到纯度更高的产品。该方法在最佳反应条件下,制备得到的CLA的纯度为97.22%,收率为32.08%,其中c9t11-CLA含量为45.14%,t10c12-CLA含量为49.12%。
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| 关 键 词： | 共轭亚油酸 高纯度 尿素包合 碱法异构 |
Research on the Preparation Method of High Purity Conjugated Linoleic Acid |
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| Xu Da,Chen Hua-yong,Luo Ri-ming,Wang Wei-fei,Yang Bo. Research on the Preparation Method of High Purity Conjugated Linoleic Acid[J]. Food and Fermentation Industries, 2011, 37(6) |
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| Authors: | Xu Da Chen Hua-yong Luo Ri-ming Wang Wei-fei Yang Bo |
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| Affiliation: | Xu Da1,Chen Hua-yong1,Luo Ri-ming1,Wang Wei-fei2,Yang Bo1 1(Couege of Bioscience and Bioengineering,South China University of Technology,Guangzhou 510006,China) 2(College of Light Industry and Food Science,South China university of Technology,Guangzhou 510640,China) |
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| Abstract: | High purity conjugated linoleic acid(CLA) was prepared by means of urea adduct purification and conjugation by safflower oil.This paper is focused on two different synthesis methods:(1) alkaline catalysis-urea adduction fractionation,(2) saponification-urea adduction fractionation-alkaline catalysis.The processing parameters and the ratio of CLA isomers for each method were investigated.The result showed that the second method which was enriching linoleic acid(LA) first and then performing alkaline catalyze... |
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| Keywords: | CLA high purity urea adduction fractionation alkaline catalysis |
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