Abstract Microwave-assisted extraction (MAE) has been recognized as a technique with several advantages over other extraction methods, such as reduction of costs, extraction time, energy consumption, and CO2 emissions. In this study, MAE was performed to obtain essential oils from two different herbs (basil and epazote). A factorial design was conducted in order to determine the effect of solvent quantity, power, and heating time on essential oil yields. Chemical composition, physical properties and yield percentage of essential oils from MAE were compared with essential oils obtained by steam distillation (SD). Amount of solvent and heating time significantly affected the yields (p<0.05). Chemical composition and physical properties of the essential oils from basil and epazote were not affected by the extraction method (MAE or SD), with similar yielding obtained by both methods (p<0.05).

中文翻译：

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微波辅助提取草药精油

摘要 微波辅助萃取 (MAE) 已被公认为与其他萃取方法相比具有多项优势的技术，例如降低成本、萃取时间、能耗和二氧化碳排放量。在这项研究中，MAE 用于从两种不同的草药（罗勒和依帕佐特）中获取精油。进行因子设计以确定溶剂量、功率和加热时间对精油产量的影响。将来自 MAE 的精油的化学成分、物理性质和产率百分比与通过蒸汽蒸馏 (SD) 获得的精油进行比较。溶剂量和加热时间显着影响收率（p<0.05）。罗勒和依帕唑特精油的化学成分和物理性质不受提取方法（MAE 或 SD）的影响，