Supercritical CO_2 extraction of essential oil from Valeriana officinalis by orthogonal design / 中成药
Chinese Traditional Patent Medicine
; (12)1992.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-577777
Responsible library:
WPRO
ABSTRACT
AIM:
To study the parameters of supercritical CO_2 extraction of essential oil from valeriana efficinalis by orthogonal design.METHODS:
Four factors,such as extraction pressure,extraction temperature,extraction time and separation temperature were chosen by the observation of orthogonal design,each factor was assigned to three levels.Bornyl acetate content was selected as a marker in a position to determine optimal extraction.RESULTS:
Pressure and temperature were the main factors in effecting the extraction of bornyl acetate,extraction time was minor factor relatively.CONCLUSION:
The optimal extraction is as follow,parameters were extraction pressure12 MPa,extraction temperature45 ℃,extraction time1 hour,separation temperature35 ℃,it gave the best recoveries of essential oils and bornylacetate.
Full text:
Available
Database:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional Patent Medicine
Year:
1992
Document type:
Article