Supercritical fluid CO_2 extraction of urosolic acid from Cornus officinalis
- VernacularTitle:超临界CO_2流体萃取山茱萸中熊果酸的研究
- Author:
Zhihui HAN
;
Junying CHEN
;
Jingwei ZHANG
;
Guoji LIU
- Publication Type:Journal Article
- Keywords:
Cornus officinalis Sieb.et Zucc.;
urosolic acid;
supercritical fluid CO_2 extraction(SFE CO_2)
- From:
Chinese Traditional and Herbal Drugs
1994;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the technology of supercritical fluid CO_2 extraction(SFE CO_2) on urosolic acid from Cornus officinalis.Methods The effects of pressure,temperature,time,CO_2 flow rate types,and volume of entrainer on the urosolic acid extracts were studied. The optium conditions for SFE CO_2 was determined.The technology of SFE CO_2 was compared with that of traditional solvent extraction.Results The optium extraction conditions were as follows: pressure 35.0 MPa,temperature 318 K,absolute ethyl alcohol entrainer,content 4%,time 3 h and flow rate of CO_2 8 kg/h.Conclusion SFE CO_2 excels the traditional solvent extraction in yield,safety and efficiency.
