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《Chinese Journal of Analysis Laboratory》 2011-03
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Analysis of fatty acids and vinyl ether groups in haliotis diversicolor reeve by gas chromatography/mass spectrometry

LOU Qiao-ming,WANG Yu-ming,XU Jie,XUE Chang-hu,LIU Xiao-fang and JIA Min(College of Food Science and Engineering,Ocean University of China,Qingdao 266003)  
A simple and rapid method for analysing fatty acids and vinyl ether groups in Haliotis diversicolor Reeve was developed.The total lipids of Haliotis diversicolor Reeve were extracted using Folch method,derivatised with 10% H2SO4-CH3OH solution at 60 ℃ water bath for 15 min,and finnally the composition of fatty acids and fatty aldehyde dimethyl acetals was analysed by gas chromatography/mass spectrometry(GC/MS).Thirty-one compounds were identified,including twenty five fatty acids and six fatty aldehyde dimethyl acetals.The main fatty acids of Haliotis diversicolor Reeve were C16∶0,C20:4(n-6),C20∶5(n-3),C18∶1(n-7) and C22∶5(n-3),and the main fatty aldehyde dimethyl acetals were C18∶0 DMA and C20∶1 DMA.The results showed that 10% H2SO4-CH3OH solution could prompt methyl esterification effectively,make the breaking of vinyl ether bond and convert to fatty aldehyde dimethyl acetals by aldolization,so 10% H2SO4-CH3OH solution as derivatization reagent combined with GC/MS was an effective method to analyse fatty acids and vinyl ether groups in Haliotis diversicolor Reeve.
【Fund】: 国家科技支撑计划项目(2008BAD94B05)资助
【CateGory Index】: O657.63;TS254.7
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【Citations】
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