不同产地亚麻籽含油率及亚麻籽油脂肪酸组成的研究.pdf

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CHINA OILS AND FATS
2017Vol.42No.11
检测分析
不同产地亚麻籽含油率及亚麻籽油
脂肪酸组成的研究
张晓霞,尹培培,杨灵光,范航,孙立炜,刘玉军
(1.北京林业大学生物科学与技术学院,北京100083:2.宁夏医科大学,银川750004)
摘要:采用索氏提取法和CC-MS法测定并分析了6个不同产地亚麻籽含油率及亚麻籽油脂肪
酸组成。结果表明:不同产地亚麻将含油率在36.59%~44.88%之间,含油率与产地的生长季
积温呈显著负相关(r=-0.8395,P=0.0366);亚麻籽油中相对含量最高的5种脂肪酸分别是
亚麻酸(53.36%~65.84%)、亚油酸(10.14%~16.39%)、油酸(10.03%~12.37%)、硬脂酸
(3.98%~9.85%)和软脂酸(2.41%~7.97%),不饱和脂肪酸含量高达77.51%~92.39%
综合含油率及不饱和脂肪酸相对含量等因素,最终确定甘肃陇南作为优质亚麻籽油生产地具有
定优势。
关键词∵亚麻籽含油率冫脂肪酸组成∷亚麻酸亚油酸油酸
中图分类号:1S225.1:IQ645.6文献标识码:A文章编号:1003-7969(2017)11-0142-05
Oil contents in flaxseeds from different origins and fatty acid
compositions of flaxseed oils
ZHANG", YIN Peipei, YANG Mingguang
FAN Hang, SUN Liwei, LIU Yujun
(1. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
2. Ningxia Medical University, Yinchuan 750004, China
Abstract Oil contents in flaxseed from six different origins and fatty acid compositions of flaxseed oil
were measured and analyzed by Soxhlet extraction and GS-MS. The results showed that the oil contents
of flaxseeds from different origins ranged from 36.59% to 44.88%. The oil contents were significantly
and negatively correlated with accumulated growing season temperatures(=-0.8395, P=0.0366
Fatty acids of flaxseed oils were mainly composed of linolenic acid (53.36%-65.84%), linoleic acid
(10.149-16.39%), oleic acid (10.03%-12.37%), stearic acid(3.98%-985%) and palmitic
acid (2.41%0-7.97%). The unsaturated fatty acids contents were up to 77. 51%o-92 39%. Based on
oil contents and unsaturated fatty acid contents, flaxseed oil from Longnan district exhibited obvious ad
vantages
Key words flaxseed, oil content, fatty acid composition, linolenic acid, linoleic acid, oleic acid
亚麻( Linum usititatissimuum.)俗称“胡麻”,属草本植物。亚麻籽是亚麻的种子,现已成为世界十
亚麻科( Linaceae)亚麻属( Linum)ー年生或多年生大油料作物种子之ー,产量约居世界油料产量的第
七位,主产于加拿大、北美、阿根廷、印度等国山
收稿日期:2017-06-28:修回日期:2017-08-17
我国是亚麻将的主产地之ー,主要分布于西北、华北
基金项目∷教育部博士点基金资助项目(20120014110060
及东北地区
作者简介:张晓霞(1980),女,博士,主要从事药用植物及其
次生代谢物方面的研究工作(E-mail)2zx1216@163.com。
亚麻籽油是一种优质的食用油,富含亚麻酸、
通信作者:孙立炜,讲师(Emi)un2)13aljm.ca.cm;亚油酸和油酸等多种不饱和脂肪酸,具有降血压、
刘玉军,教授,博士生导师(F-mai) yjliubioa bilu.cedu.cn
降血脂、抑制血小板凝聚及减少血栓形成、抗癌、
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