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%。
By the designation of mono-factor experiments and orthogonal muhifactor 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. heterophyUa (Franeh.) Rehd. in the supereritieal 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 supereritieal CO2 extraction conditions was 3.22%.
出处
《中药材》
CAS
CSCD
北大核心
2005年第12期1100-1103,共4页
Journal of Chinese Medicinal Materials
基金
北京市教委科技发展计划资助项目(KM200410011005)
关键词
荆条
CO2
超临界萃取
精油
Vitex aegundo L. var. heterophylla(Franeh. )Rehd.
Supereritical CO2 extraction
Essential oil