同时蒸馏萃取-气质联机分析腌渍野韭菜花香成分

Analysis of Volatiles in Salted Flowers of Wild Chinese Chive by Simultaneous Distillation and Extraction Coupled with Gas Chromatography-Mass Spectrometry

以乙醚为溶剂,采用同时蒸馏萃取法提取腌渍野韭菜花精油,提取率0.29%。用气相色谱-质谱法结合气相色谱保留指数定性方法,从腌渍野韭菜花精油中鉴定出37种挥发性成分,占精油总成分的95.75%。主要成分为二甲基三硫醚(28.18%)、二甲基二硫醚(18.13%)、甲基丙烯基二硫醚(14.24%)、甲基烯丙基三硫醚(4.89%)、甲基烯丙基二硫醚(3.19%)、甲基甲硫基甲基二硫醚(3.10%)、4-乙烯基愈创木酚(2.93%)、二烯丙基二硫醚(2.71%)、二甲基四硫醚(2.67%)、3-羟基-2-丁酮(2.42%)、2-乙烯基-2-丁烯醛(1.54%)、2,5-二甲基-1,3,4-五硫三环(1.45%)、苯甲醇(1.31%)和甲硫基甲磺酰基甲烷(1.28%)等。其中硫醚和多硫醚类成分11种,相对含量79.99%,是腌渍野韭菜花的特征香气成分。

Essential oil in salted flowers of wild Chinese chive was extracted using simultaneous distillation and solvent extraction method,with the oil yield at 0.29%.The oil was then analyzed using GC-MS,and totally 37 components were identified according to their retention indices,covering 95.75% of the total components.Main components with their relative contents were listed as follows：dimethyl trisulfide（28.18%）,dimethyl disulfide（18.13%）,methyl 1-propenyl disulfide（14.24%）,allyl methyl trisulfide（4.89%）,allyl methyl disulfide（3.19%）,methyl methylthiomethyl disulfide（3.10%）,4-vinylguaiacol（2.93%）,diallyl disulphide（2.71%）,dimethyl tetrasulfide（2.67%）,3-hydroxy-2-butanone（2.42%）,2-ethenyl-2-butenal（1.54%）,2,5-dimethyl-1,3,4-trithiolane（1.45%）,benzyl alcohol（1.31%） and methylsulfinyl methylthio methane（1.28%）.Totally 11 sulfides and multi-sulfides were found in the oil with their relative content at 79.99%,and were believed to be the characteristic aroma components of the salted flowers of wild Chinese chive.