Supercritical CO_2 extraction of Rhizoma Chuanxiong volatile oil / 中成药
Chinese Traditional Patent Medicine
;
(12)1992.
Article
in Chinese
| WPRIM
| ID: wpr-574127
ABSTRACT
AIM:
Supercritical CO_2 extraction of Rhizoma Chuanxiong volatile oil was studied under conditions of extraction temperature between 33-48 ℃,pressure between 10-25 MPa and CO_2 flow rate between 2-4 L?min -1 .Influence of extraction conditions on solubility and mass transfer rate were analyzed.METHODS:
Based on plug flow in fixed bed,experimental extraction curves were evaluated using a model put forward by Stastova.And the effects of extraction conditions on mass transfer coefficients were also analyzed.RESULTS:
Coefficient of mass transfer was slowly increased as the extraction temperature elevated,and was in accord with flow and in contrast with pressure.CONCLUSION:
The method has a practical use value in the extraction of Rhizoma Chuanxiong volatile oil.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional Patent Medicine
Year:
1992
Type:
Article
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