【摘要】 通过单因素试验及正交试验,考察了萃取压力、萃取温度、萃取时间、CO2流量等因素对荆条叶油萃取率的影响,确定了CO2超临界流体萃取荆条叶油的最佳工艺条件:萃取压力22MPa,萃取温度45℃,CO2流量25L/h,萃取时间3h,荆条叶油萃取率3·22%。更多还原

【Abstract】 By the designation of mono-factor experiments and orthogonal multifactor experiments, influences of extraction temperature, extraction pressure, CO₂ flow rate and extraction times on the yield of oil from the leaves of Vitex negundo L. var. heterophylla（Franch.） Rehd. in the supercritical CO₂ extraction process were investigated. The obtained optimal extraction technology was: the extraction pressure: 22 MPa; the extraction temperature: 45℃; the CO₂ flow rate: 25 L/h and the extraction time: 3h. The oil yield on the above supercritical CO₂ extraction conditions was 3.22%.更多还原