食品科学

• 分析检测 • 上一篇    下一篇

伊拉兔肉脂肪酸组成的GC-MS分析

王 毅,贺稚非,陈红霞,朱慧敏,李洪军   

  1. 1.西南大学食品科学学院,重庆 400716;2.重庆市特色食品工程技术研究中心,重庆 400716
  • 出版日期:2013-12-25 发布日期:2014-01-03

Analysis of the Fatty Acid Composition of Ira Rabbit Meat by GC-MS

WANG Yi,HE Zhi-fei,CHEN Hong-xia,ZHU Hui-min,LI Hong-jun   

  1. 1. College of Food Science, Southwest University, Chongqing 400716, China;
    2. Chongqing Special Food Engineering and Technology Research Center, Chongqing 400716, China
  • Online:2013-12-25 Published:2014-01-03

摘要:

以氢氧化钾-甲醇碱催化法对样品进行甲酯化预处理,采用气相色谱-质谱测定伊拉兔肉前腿肌、背腰肌、后腿肌的脂肪酸组成及其含量,为兔肉的开发利用提供理论依据。结果表明:兔胴体肌肉的主要脂肪酸组成有19种,其中棕榈酸、硬脂酸、油酸、亚油酸的累积含量占总脂肪酸含量的77%左右。兔肉肌内脂肪中主要是不饱和脂肪酸,尤以多不饱和脂肪酸居多,占37%左右,高于饱和脂肪酸含量。各部位间的脂肪酸组成差异不显著(P>0.05)。

关键词: 伊拉兔肉, 脂肪酸, 气相色谱-质谱, 定性定量分析

Abstract:

The content and composition of fatty acids in foreleg muscle, back muscle and hind leg muscle of Ira rabbit
meat were determined by gas chromatography-mass spectrometry (GC-MS). Sample pretreatment was achieved through
methyl esterification in the presence of KOH-CH4O. The results showed that there were mainly 19 fatty acids in these
rabbit muscles, wherein palmitic acid, stearic acid, oleic acid and linoleic acid together accounted for 77% of the total fatty
acids. Unsaturated fatty acids (UFA), especially polyunsaturated fatty acids (PUFA), were the main components in rabbit
intramuscular fat, which accounted for 37% of the total fatty acids and were higher than that of saturated fatty acids (SFA).
The differences in fatty aid composition among the various muscles were not statistically significant (P > 0.05), though the
total contents of fatty acids in these three muscles varied largely.

Key words: Ira rabbit, fatty acid, gas chromatography-mass spectrometry (GC-MS), qualitative and quantitative analysis