食品科学 ›› 2012, Vol. 33 ›› Issue (6): 190-193.doi: 10.7506/spkx1002-6630-201206041

• 分析检测 • 上一篇    下一篇

青海欧拉羊肌肉脂肪酸组成的气相色谱-质谱分析

皮 立1,2,3,胡凤祖1,星玉秀1,2,邓 黎1,2,3,周同永1,2,3,韩 发1,3,*;;   

  1. 1.中国科学院西北高原生物研究所 2.中国科学院研究生院 3.中国科学院高原生物适应与进化重点实验室
  • 出版日期:2012-03-25 发布日期:2012-03-03

GC-MS Analysis of Muscle Fatty Acid Composition of Oula Sheep Living in Qinghai Province

PI Li1,2,3,HU Feng-zu1,XING Yu-xiu1,2,DENG Li1,2,3,ZHOU Tong-yong1,2,3,HAN Fa1,3,*   

  1. (1. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China; 2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China; 3. Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810008, China)
  • Online:2012-03-25 Published:2012-03-03

摘要: 对青海欧拉羊肌肉脂肪酸进行分析,并与高原型藏羊和小尾寒羊的肌肉脂肪酸组成进行比较。欧拉羊肌肉提取脂肪后进行甲酯化,用气相色谱-质谱联用法测定脂肪酸组成。结果显示:在欧拉羊肌肉中分离鉴定出17种脂肪酸,其主要成分是棕榈酸(22.33%)、硬脂酸(25.91%)、油酸(39.32%)、亚油酸(1.87%),其中饱和脂肪酸占51.62%、单不饱和脂肪酸占42.41%、多不饱和脂肪酸占5.34%。欧拉羊不饱和脂肪酸含量与高原型藏羊比较,无明显差别,比小尾寒羊的含量要高。

关键词: 欧拉羊, 藏羊, 脂肪酸, 背最长肌, 气相色谱- 质谱

Abstract: The fatty acid composition of longissimus dorsi in Oula sheep living in Qinghai province was analyzed by GC-MS after methyl esterification and compared with that of Tibetan sheep and Small Tail Han sheep. A total of 17 fatty acids were identified in the muscle of Oula sheep, mainly consisting of stearic acid (22.33%), palmitate acid (25 91%), oleic acid (39.32%) and linoenic acid (1.87%). Saturated, monounsaturated and polyunsaturated fatty acids accounted for 51.62%, 42.41% and 5.34% of the total fatty acids, respectively. Oula sheep showed no remarkable differences in unsaturated fatty acid content when compared with Tibetan sheep, but was higher than mall-tail Han sheep.

Key words: Oula sheep, Tibetan sheep, fatty acid, longissimus dorsi, gas chromatography-mass spectrometry (GC-MS)

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