采用内标法测定甲基丁香酚的含量,在单因素试验基础上设计正交试验,研究浸泡时间、料液比、提取温度、提取时间对超声辅助提取(UAE)华细辛挥发油中甲基丁香酚提取率的影响.结果表明:最佳提取条件为:浸泡时间3h,料液比1∶40(g/mL),提取温度60℃,提取时间40 min,经3次平行实验验证,此条件下的甲基丁香酚平均得率为0.661％,比正交实验任意组得率高,该超声辅助提取工艺稳定可靠.%In this study,the content of methyl eugenol from volatile oil of Asarum sieboldii Miq. was extracted by ultrasound-assisted extraction and determined by spiking internal standard. Based on the results of single factor experiment, orthogonal tests were designed to optimize the extraction conditions, including immersion time, material-liquid ratio, extraction temperature and time. The results showed that the best extraction conditions were as follows;3 h as immersion time, 1 : 40 as material-liquid ratio,60℃as the extraction temperature,40 min as the extraction time,with 3 parallel experimental verifications. The yields of methyl eugenol extracted out under this condition were higher than any orthogonal group. The ultrasound-assisted extraction process was proved to be stable and reliable.
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