同时蒸馏萃取- 气质联机分析腌渍野韭菜花香成分

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。

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

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.