红麻籽油脂肪酸成分分析及其亚油酸富集工艺的研究  

Fatty Acid Component Analysis and Enrichment Process of Linoleic Acid from Kenaf Seed Oil

作　　者：阮奇城[1] 祁建民[1] 黄李冉[2] 苏金为[2] 

机构地区：[1]福建农林大学作物遗传育种与综合利用教育部重点实验室,福州350002 [2]福建农林大学生命科学学院,福州350002

出　　处：《中国粮油学报》2009年第9期71-75,共5页Journal of the Chinese Cereals and Oils Association

基　　金：国家农业部公益性行业(农业)科研专项(nyhyzx-018(3));福建省科技厅重点科技项目(2008N0102)

摘　　要：红麻籽油是一种典型的油酸-亚油酸型油脂,本文通过气相色谱法分析两个高亚油酸红麻品种籽油脂肪酸成分,结果表明,金光1号籽油含软脂酸17.31%、硬脂酸1.67%、油酸28.13%、亚油酸51.81%、亚麻酸1.09%;福红952籽油含软脂酸20.51%、硬脂酸2.86%、油酸28.72%、亚油酸47.20%、亚麻酸0.72%。另外,本研究以尿素包和法富集红麻亚油酸,通过L9(34)正交试验优化其富集工艺条件,结果表明,尿素包合法富集红麻籽油亚油酸的最佳工艺条件条件是:W脂肪酸∶W尿素∶V乙醇=1∶2∶8,在0℃条件下结晶12 h,富集后亚油酸含量提高到83.7%,收率达到56.4%,基本符合富集效果,为红麻食用保健油研发及其产业化奠定良好的工作基础。Kenaf seed oil is a typical kind of plant oil with oleic acid and linoleic acid. In the study, two high - linoleie - acid cultivars were used to analyze fatty acid components in seed oil by gas chromatography. Then, linoleie acid in kenaf- seed oil is enriched by the method of urea adduetion, and the optimization parameters for linoleic acid enrichment were determined through L9 （3^4） orthogonal experiment. Results： The seed oil of kenaf ＂Jinguang No. 1＂ contains palmitic acid 17.31% , stearic acid 1.67% , oleie acid 28.13% , linoleie acid 51.81% , and linolenie acid 1.09% ; while the seed oil of kenaf ＂ Fuhong 952＂ contains palmitie acid 20.51% , stearie acid 2.86% , oleie acid 28.72% , linoleic acid 47.20% , and linolenic acid 0. 72%. The optimal conditions for linoleie acid enrichment are as follows： Mfatty aeid：Murea：Vethanol = 1：2：8, and crystallization for 12 h under 0 ℃. The amount of linoleic acid is up to 83.7% after the enrichment and the yield rate is 56.4%. So the enrichment target is attained on the whole. This study provides a good working basis for the development and industrialization of health care kenaf seed oil.

关 键 词：红麻籽油 气相色谱法 脂肪酸成分 尿素包和法 亚油酸 

分 类 号：TQ645.61[化学工程—精细化工]