Comparative Study of Volatile Oil Extraction Process from Flowers of Elaeagnus angustifolia L.with Steam Distillation and Supercritical CO_2 Extraction
- VernacularTitle:超临界CO_2萃取和水蒸气蒸馏法萃取沙枣花挥发油工艺的比较研究
- Author:
Yijun LIAN
;
Yuanyuan LI
;
Min LI
- Publication Type:Journal Article
- Keywords:
flowers of Elaeagnus angustifolia L.;
volatile oil;
steam distillation;
supercritical CO2 extraction;
orthogonal test
- From:
Chinese Journal of Information on Traditional Chinese Medicine
2006;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To optimize the extraction process by determing the volatile oil yield of steam distillation and supercritical CO2 extraction from flowers of Elaeagnus angustifolia L..Methods Orthogonal test was carried out to compare two extraction effects between steam distillation and supercritical CO2 extraction by detecting the extraction ratio from flowers of Elaeagnus angustifolia L..Results Steam distillation time on volatile oil extraction has the greatest impaction,and the best condition of supercritical CO2 extraction was extraction pressure of 20 MPa,extraction temperature of 40 ℃,and flux of CO2 is 10 L/h.Conclusion Compared with steam distillation,supercritical CO2 extraction spends less time,has higher efficiency and less harm to the materiel after extracting.It adapts to batch process and is convenient for subsequent extraction technology.
