不同产地烟草精油的提取及化学组成分析

选取四川、贵州和福建三地烟草为原料,用水中蒸馏法提取烟草精油。采用气相色谱-质谱联用(GC-MS)仪对不同产地烟草精油的组成及含量进行分析,比较了不同产地对产物产率及组成的影响。研究结果表明:产自福建、四川和贵州的烟草平均得率分别为0.1391%、0.0851%和0.1075%,相应的新植二烯分别为39.86%、36.12%和44.88%。对比分析显示:产自福建的烟草得油率最高,特征香气适中;产自贵州的烟草精油得油率适中,烟草香气突出,有明显甘草香气;产自四川的烟草精油得油率较低,香气较弱。

Extraction and Chemical Composition Analysis of Tobacco Essential Oil from Different Places

Tobacco in Sichuan, Guizhou, and Fujian was selected as raw materials, and the essential oil of tobacco was extracted by distillation in water. Gas chromatography-mass spectrometry(GC-MS) was used to analyze the composition and content of tobacco essential oil from different production areas, and the influences of different production areas on the yield and composition of the product were compared. The results showed that the average yields of tobacco from Fujian, Sichuan, and Guizhou were 0.139 1%, 0.085 1%, and 0.107 5%, respectively, and the corresponding contents of neophytadiene were 39.86%, 36.12%, and 44.88%, respectively. According to the comparison analysis, the tobacco produced in Fujian had the highest oil yield and moderate characteristic aroma; the tobacco essential oil produced in Guizhou had moderate oil yield, prominent tobacco aroma, and obvious licorice aroma; the tobacco essential oil produced in Sichuan had the highest oil yield, and weaker aroma.