中国大鲵油脂肪酸成分及流变性分析?

doi:10.7506/spkx1002-6630-200924092

食品科学 ›› 2009, Vol. 30 ›› Issue (24): 405-408.doi: 10.7506/spkx1002-6630-200924092

中国大鲵油脂肪酸成分及流变性分析?

王军¹，于月英¹，李林强¹，昝林森²，任正东³

1.陕西师范大学食品工程与营养科学学院 2.西北农林科技大学动物科技学院 3.陕西省粮油产品质量监督检验所

收稿日期:2008-11-21 出版日期:2009-12-15 发布日期:2010-12-29
通讯作者: 王军 E-mail:wang6868jun@126.com

Fatty Acid Compositions and Rheological Properties of Oil from Chinese Giant Salamander (Andrias davidianus)

WANG Jun1，YU Yue-ying1，LI Lin-qiang1，ZAN Lin-sen2，REN Zheng-dong3

(1. College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi an 710062, China；
2. College of Animal Science and Technology, Northwest A & F University, Yangling 712100, China；
3. Shaanxi Provincial Institute of Cereals and Oil Products Quality Supervise and Test, Xi an 710016, China)

Received:2008-11-21 Online:2009-12-15 Published:2010-12-29
Contact: WANG Jun1， E-mail:wang6868jun@126.com

摘要/Abstract

摘要：

采用气相色谱- 质谱联用技术(GC-MS)分析大鲵油的脂肪酸组成；采用流变仪测定大鲵油及其和花生油不同配比(75:25、50:50、25:75)时的黏度和剪切应力随剪切速率的变化。GC-MS 分析结果表明：大鲵油主要含12种脂肪酸：C18:1 24.55%、C16:1 16.40%、C16:0 15.64%、C18:2 8.28%、C20:5 6.74%、C18:3 5.48%、C22:6 4.27%、C14:0 3.00%、C18:0 2.87%、C20:4 2.71%、C22:5 2.64%、C17:0 2.47%。饱和脂肪酸(SFA)达23.98%，不饱和脂肪酸(UFA)达76.58%，其中单不饱和脂肪酸(MUFA)为45.47%，多不饱和脂肪酸(PUFA)为31.11%，UFA:SFA=3.19:1(m/m)，ω-3 型PUFA 为20.85%，ω-6 型PUFA 为10.26%。流变性分析结果表明：大鲵油:花生油为50:50 的配比时黏度显著降低，呈牛顿流体特性。实验结果表明大鲵油富含ω-3 和ω-6 型PUFA，极具营养和保健功能。

关键词: 大鲵油, 脂肪酸组成, 气相色谱- 质谱法, 流变性

Abstract:

The fatty acid compositions of Andrias davidianus oil were analysed with gas chromatography/mass spectrometry (GC-MS); meanwhile the viscosity and the shear stress of the oil and its mixture with peanut oil at various ratios (75:25, 50:50, 25:75) were measured with rheometer. GC-MS results showed that there werer totally 12 fatty acids in Andrias davidianus oil with their contents as follows: C18:1 24.55%, C16:1 16.40%, C16:0 15.64%, C18:2 8.28%, C20:5 6.74%, C18:3 5.48%, C22:6 4.27%, C14:0 3.00%, C18:0 2.87%, C17:0 2.47%, C22:5 2.64%, C20:4 2.71%. And there were 23.98% of saturated fatty acids (SFA) and 76.58% of unsaturated fatty acids(UFA), in which the propotion of monounsaturated fatty acids(MFA) was 45.47%, and that of polyunsaturated fatty acids(PUFA) was 31.11% with the UFA/SFA ratio at 3.19:1, and the propotion of ω-3 PUFA was 20.85%, and the propotion of ω-6 PUFA was 10.26%. Rheological analysis showed that viscosity of oil consisting of 50% Andrias davidianus oil and 50% peanut oil decreased significantly, and exhibited properties of Newtonian fluid. The results suggested that Andrias davidianus oil was a nutritional oil with probable healthy functions.

Key words: Andrias davidianus oil, fatty acid compositions, GC-MS, rheological properties

中图分类号:

TS251.1

王军1，于月英1，李林强1，昝林森2，任正东3. 中国大鲵油脂肪酸成分及流变性分析?[J]. 食品科学, 2009, 30(24): 405-408.

WANG Jun1，YU Yue-ying1，LI Lin-qiang1，ZAN Lin-sen2，REN Zheng-dong3. Fatty Acid Compositions and Rheological Properties of Oil from Chinese Giant Salamander (Andrias davidianus)[J]. FOOD SCIENCE, 2009, 30(24): 405-408.

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中国大鲵油脂肪酸成分及流变性分析?

Fatty Acid Compositions and Rheological Properties of Oil from Chinese Giant Salamander (Andrias davidianus)

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