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来自塞马湖、拉多加湖、波罗的海和斯匹次卑尔根的环斑海豹（Phoca hispida sp.）皮下脂肪中的超长链多不饱和脂肪酸。

Very long chain polyunsaturated fatty acids in the blubber of ringed seals (Phoca hispida sp.) from Lake Saimaa, Lake Ladoga, the Baltic Sea, and Spitsbergen.

作者信息

Käkelä R, Ackman R G, Hyvärinen H

机构信息

Department of Biology, University of Joensuu, Finland.

出版信息

Lipids. 1995 Aug;30(8):725-31. doi: 10.1007/BF02537799.

DOI:10.1007/BF02537799
PMID:7475988
Abstract

Blubbers of four ringed seal subspecies from Lake Saimaa, Lake Ladoga, the Baltic Sea, and Spitsbergen were analyzed for very long chain polyunsaturated fatty acids (VLCPUFA; > C22) using gas-liquid chromatography and gas chromatography/mass spectrometry. The VLCPUFA of the blubber oils were mainly n-3 polyunsaturated fatty acids--23:5n-3, 24:3n-3, 24:4n-3, 24:5n-3, 24:6n-3, 26:5n-3, 26:6n-3, and 28:7n-3. The largest VLCPUFA components in all populations were 24:5n-3 (0.1-0.2 wt% of total fatty acids) and 24:6n-3 (0.1%), but 24:4n-3 (0.1%) was also prominent in the Baltic specimens. The blubber oils of the freshwater species contained considerably more 24:4n-6 and 24:5n-6 than the blubbers of the marine species. The differences among the VLCPUFA in these subspecies appear to be mainly due to different dietary VLCPUFA.

摘要

利用气液色谱法和气相色谱/质谱分析法，对来自塞马湖、拉多加湖、波罗的海和斯匹次卑尔根岛的四种环斑海豹亚种的鲸脂进行了超长链多不饱和脂肪酸（VLCPUFA；> C22）分析。鲸脂油中的VLCPUFA主要是n-3多不饱和脂肪酸——23:5n-3、24:3n-3、24:4n-3、24:5n-3、24:6n-3、26:5n-3、26:6n-3和28:7n-3。所有种群中最大的VLCPUFA成分是24:5n-3（占总脂肪酸的0.1-0.2 wt%）和24:6n-3（0.1%），但24:4n-3（0.1%）在波罗的海样本中也很突出。淡水物种的鲸脂油中24:4n-6和24:5n-6的含量比海洋物种的鲸脂中多得多。这些亚种的VLCPUFA之间的差异似乎主要是由于不同的饮食VLCPUFA造成的。

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