Supercritical CO_2 extraction of essential oil from Valeriana officinalis by orthogonal design
- VernacularTitle:正交法优化缬草挥发油超临界CO_2流体提取工艺
- Author:
Jianchao ZHANG
;
Ying FANG
;
Yanwen LIU
;
Lei WANG
;
Xingyi ZOU
- Publication Type:Journal Article
- Keywords:
orthogonal design;
valerian oil;
supercritical CO_2 extraction;
bornyl acetate
- From:
Chinese Traditional Patent Medicine
1992;0(02):-
- CountryChina
- Language:Chinese
-
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 pressure:12 MPa,extraction temperature:45 ℃,extraction time:1 hour,separation temperature:35 ℃,it gave the best recoveries of essential oils and bornylacetate.
