不同物种茶油脂肪酸组成及其在Sn-2位上的分布
CSTR:
作者:
作者单位:

(1.中南林业科技大学食品科学与工程学院,湖南 长沙 410004;2.粮油深加工与品质控制湖南省重点实验室,湖南 长沙 410004;3. 湖南农业大学,湖南 长沙 420128;4. 国家油茶技术研究中心,湖南 长沙 410004)

作者简介:

冯纳,女,中南林业科技大学在读研究生。

通讯作者:

中图分类号:

基金项目:

国家自然科学基金(编号:31070612);国家油茶工程技术研究中心开放基金项目(编号:2014C201-2)


Analysis of fatty acids component and distribution in Sn-2 in oils from different Camellia spp.
Author:
Affiliation:

(1. School of Food Science and Engineering,Central South University of Forestry and Technology, Changsha, Hunan 410004, China; 2. Hunan Province Key Laboratory of Grain and Oil Processing and Quality Control, Changsha, Hunan 410004, China; 3. Hunan Agricultural University, Changsha, Hunan 420128, China; 4. National Technology Research Center of Camellia, Changsha, Hunan 410004, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    试验以十五烷酸为内标,定量分析9种不同物种茶油的脂肪酸组成;用胰脂肪酶专一性地水解茶油甘油三酯中Sn-1和Sn-3位上的脂肪酸,并经薄层层析分离出Sn-2位甘一酯,采用气相色谱仪对Sn-2位脂肪酸组成进行测定。结果表明:9个不同物种茶油主要由棕榈酸、硬脂酸、油酸、亚油酸、亚麻酸5种脂肪酸组成,浙江红花油茶的油酸和不饱和脂肪酸的含量最高,分别为82.79 g/100 g和84.77 g/100 g;且脂肪酸之间存在一定的相关性;Sn-2位上的脂肪酸主要为油酸和亚油酸,短柱茶在Sn-2位的油酸和不饱和脂肪酸含量最高,分别为82.96%,92.89%。表明茶油是一种不饱和脂肪酸含量高且容易被人体消化吸收的油脂。

    Abstract:

    The contents of fatty acids in nine different oils of Camellia spp.wereanalyzed by GC using methyl pentadecanoate as the internal standard. The triglycerides were specially hydrolyzed by the use of pancreatic lipase, 2-monoglyceride was isolated by thin-layer chromatography and then was analyzedby gas chromatography. The results showed that five kinds of fatty acids presented in tested samples of which were palmitic acid, stearic acid, oleic acid, linoleic aicd and linolenic acid. Contents of oleic acid and unsaturated fatty acids in Camellia chekiangoleosawere the highest with 82.79 and 84.77 g/100 g, respectively. The fatty acids in Sn-2 were mainly oleic acid and linoleic acid, and of which were the highest in C. brevistylaoil with 82.96% and 92.89%,respectively. It means that the major fatty acids present in camellia seed oil were the unsaturated fatty acidswhich are easily digested.

    参考文献
    相似文献
    引证文献
引用本文

冯纳,钟海雁,周波,等.不同物种茶油脂肪酸组成及其在Sn-2位上的分布[J].食品与机械,2016,32(3):20-23.
FENGNa, ZHONGHaiyan, ZHOUBo, et al. Analysis of fatty acids component and distribution in Sn-2 in oils from different Camellia spp.[J]. Food & Machinery,2016,32(3):20-23.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2015-11-25
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2023-03-09
  • 出版日期:
文章二维码
×
《食品与机械》
友情提示
友情提示 一、 近日有不少作者反应我刊官网无法打开,是因为我刊网站正在升级,旧网站仍在百度搜索排名前列。请认准《食品与机械》唯一官方网址:http://www.ifoodmm.com/spyjx/home 唯一官方邮箱:foodmm@ifoodmm.com; 联系电话:0731-85258200,希望广大读者和作者仔细甄别。