食品科学 ›› 2010, Vol. 31 ›› Issue (4): 214-217.doi: 10.7506/spkx1002-6300-201004049

• 分析检测 • 上一篇    下一篇

杜仲种子脂肪酸及氨基酸分析

段小华1,邓泽元2,朱笃1   

  1. 1.江西师范大学生命科学学院,江西省亚热带植物重点实验室 2.南昌大学生命科学与食品工程学院,食品科学与技术国家重点实验室
  • 收稿日期:2009-02-09 出版日期:2010-02-15 发布日期:2010-12-29
  • 通讯作者: 段小华 E-mail:dxh815@163.com

Fatty Acid and Amino Acid Composition of Eucommia ulmoides Oliver Seeds

DUAN Xiao-hua1,2,DENG Ze-yuan2,*,ZHU Du1   

  1. 1. Jiangxi Provincial Key Laboratory of Subtropical Plant, College of Life Science, Jiangxi Normal University, Nanchang 330022,
    China;2. State Key Laboratory of Food Science and Technology, School of Life Sciences and Food Engineering, Nanchang University,
    Nanchang 330047, China
  • Received:2009-02-09 Online:2010-02-15 Published:2010-12-29
  • Contact: DUAN Xiao-hua E-mail:dxh815@163.com

摘要:

采用索氏法提取杜仲种子中的粗脂肪,采用气相色谱及色谱- 质谱联用分析法测定杜仲种子中的脂肪酸组成及含量,利用氨基酸自动分析仪测定其氨基酸的组成及含量。杜仲种子油脂含量为35.5%,包括11 种脂肪酸,其主要成分为亚油酸(10.66%)、油酸(16.9%)、棕榈酸(6.03%)、硬脂酸(1.96%)、亚麻酸(63.15%),以不饱和脂肪酸为主,含量高达91.26%,其中尤以亚麻酸含量最高,达63.15%;杜仲种子粗蛋白质含量为25%,主要氨基酸为Asp、Glu、Ser、Arg、Gly、Thr、Pro、Ala、Val、Met、I l e、Leu、Phe、 His、Lys、Tyr、Cys-Cys。其中必需氨基酸和半必需氨基酸含量较高,分别占氨基酸总量的33.6% 和11.2%。表明杜仲种子是一种有很高利用价值的可开发资源。

关键词: 杜仲, 脂肪酸, 蛋白质, 氨基酸成分分析

Abstract:

Fatty acid and amino acid composition of Eucommia ulmoides Oliver seeds were analyzed using Soxhlet extraction followed by GC-MS and automatic amino acid analyzer, respectively. Eucommia ulmoides Oliver seeds comprised 35.5% oil and 11 fatty acids were identified in the oil, mainly including linolic acid (10.66%), oleic acid (16.9%), palmitic acid (6.03%), stearic acid (1.96%), and linolenic acid (63.15%), among which, unsaturated fatty acids were dominant with relative content as high as 91.26% and linolenic acid exhibited the highest content. A total of 25% protein was contained in Eucommia ulmoides Oliver seeds and the amino acid composition consisted of Asp, Glu, Ser, Arg, Gly, Thr, Pro, Ala, Val, Met, Ile, Leu, Phe, His, Lys, Tyr and Cys-Cys, among which, the contents of essential amino acids and semi-essential amino acids were higher, accounting for 33.6% and 11.2% of total amino acids, respectively. These results reveal a high utilization value of Eucommia ulmoides Oliver seeds as an exploitable source abundant in protein and unsaturated fatty acids.

Key words: Eucommia ulmoides Oliver, fatty acid, protein, amino acid

中图分类号: