盐地碱蓬共轭亚油酸的制备及结构分析  

Study on the Preparation of Conjugated Linoleic Acid with S. salsa Seed Oil and the Determination of Molecule Structures

作　　者：石红旗[1] 姜伟[1] 衣丹[1] 刘发义[1] 李光友[1] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266003

出　　处：《食品科学》2005年第5期80-84,共5页Food Science

摘　　要：以丙三醇为溶剂体系,研究盐地碱蓬籽油合成共轭亚油酸(CLA)的工艺条件。并在该工艺中对丙三醇的可重复利用性进行了试验,由于油脂水解本身产生丙三醇,为此重复利用可以达到溶剂体系的循环适用。产物经分析表明,亚油酸异构化产物主要为共轭亚油酸结构,含有顺式和反式双键结构。试验结果表明,盐地碱蓬籽油是制备共轭亚油酸的好原料,所得产品中共轭亚油酸含量可以达到70%以上。用盐地碱蓬籽油制备共轭亚油酸的合适条件为:反应温度在185～190℃,时间在2～3h,催化剂用量为油重的20%,溶剂用量为油重的2～3倍。Techniques of the conjugated linoleic acid synthesied with S. salsa seed oil had been investigated in glycerine solvent system. The repeated use of glycerine solvent was also studied. Because oil hydrolysis would produce glycerine, the solvent system might be used repeatedly. The molecular geometric structures of CLA preparations were determined by GC-MS and GC-IR spectrum. CLA preparations contained mainly cis-and trans- double bonds. The CLA peak position of GC spectrum was determined by standard CLA. The results showed that S. salsa oil was a kind of good raw material. The CLA content in the fatty acid preparations could be as high as 70%. Optimal conditions were: temperature of 185～190℃, time of 2～3h, katalyst amount to oil as 20% and amount of solvent to oil in 2～3 times.

关 键 词：共轭亚油酸 盐地碱蓬 制备 结构分析 

分 类 号：Q946[生物学—植物学]