【摘要】 目的比较超临界流体CO2提取法和水蒸汽蒸馏法提取南五味子挥发油的主要化学成分。方法通过正交试验确定超临界流体CO2提取的最佳工艺条件,采用超临界流体CO2提取和水蒸汽蒸馏法提取五味子挥发油,并采用GC-MS方法分析成分。结果超临界流体CO2提取的最佳工艺条件为提取温度40℃、提取压力15 MPa、提取时间3 h,在此条件下南五味子挥发油得率为8.2%,鉴定出16个成分。水蒸汽蒸馏法提取南五味子挥发油得率为1.4%,鉴定出24个成分。结论超临界流体CO2提取南五味子挥发油的得率比水蒸汽蒸馏法高,挥发油的组分和含量均有一定的差异。更多还原

【Abstract】 Objective To compare the different chemical constituents of essential oil from Schisandrae Sphenantherae Fractus extracted by supercritical ?uid CO2 extraction(SFE-CO2) and steam distillation(SD).Methods The orthogonal test was carried out to determine the optimal extraction conditions according to the yield of essential oil extracted by SFE-CO2.The SFE-CO2 and SD were used to extract essential oil which was identified by GC-MS.Results The optimal SFE-CO2 extraction conditions were as follows: The extraction temperature was 40 ℃,with extraction pressure 15 Mpa and extraction time 3 hours.The average extraction rate of the essential oil by SFE-CO2 and SD were 8.2 % and 1.4 %,and 16 and 24 components were identified by GC-MS analysis,respectively.Conclusion The results indicated that the average extraction rate of essential oil by SFE-CO2 was higher than that by SD,and both the components and content of the oil were different.更多还原