研究超临界CO2萃取神香草精油的工艺,探讨萃取压力、温度、时间和CO2流量对神香草精油得率的影响,正交试验确定最佳工艺条件,各因素对神香草精油得率影响程度是:萃取压力>CO2流量>萃取温度>萃取时间.优化的工艺条件为萃取压力12 MPa、温度40℃、CO2流量20 L/h、萃取时间90 min,神香草精油得率为2.558%.%Study of supercritical CO2 extraction technology of essential oil of Hyssopus officinalis, extraction pressure, temperature,time and flow rate on the yield of essential oil Hyssopus officinalis CO2 effect,orthogonal experiment to determine the optimal process conditions,the factors on the yield of essential oil Hyssopus officinalis:influence of extraction pressure>CO2>extraction temperature,extraction time flow. Optimization of process conditions for the extraction pressure,12 MPa;extraction temperature,40 ℃ ;CO2 flow,20 L/h;extraction time,90 min;hyssop oil rate was 2.558%.
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