Supercritical CO_2 extraction of atractylenolide Ⅰ from Atractylodes macrocephala
- VernacularTitle:白术中白术内酯Ⅰ的超临界CO_2萃取工艺研究
- Author:
Lin YANG
;
Dan HE
- Publication Type:Journal Article
- Keywords:
Atractylodes macrocephala Koidz;
atractylenolide Ⅰ;
supercritical CO_2 fluid extraction
- From:
Chinese Traditional and Herbal Drugs
1994;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the extraction technique for atractylenolide Ⅰ in Atractylodes macrocephala by supercritical CO_2 fluid extraction and develop a method used for determining the content of atractylenolide Ⅰ in the extract by HPLC. Methods The effects of seven facters, such as the extracting pressure, resolving pressure etc, to the extraction rate of atractylenolide Ⅰ in A. macrocephala by supercritical CO_2 extraction were investigated. RP-HPLC was used to determine the content of atractylenolide Ⅰ in extraction of A. macrocephala. The separation was performed on Hypersil ODS2 column with methanol-water (70∶30) as mobile phase. The flow rate was 1.0 mL/min and the wavelength of UV detector was 220 nm. Results The optimal extracting conditions: taking 10% alcohol as entraiter, the particle size of medicinal substances was 60 screen meshes, extracting pressure 25 MPa, resolving pressure 5 MPa, extracting temperature 40 ℃, resolving temperature 30 ℃, and the extracting time 4 h. Conclusion Supercritical extraction is time-shorter and efficient in extracting atractylenolide Ⅰ from A. macrocephala. It is suitable to both trial and industrialized production. The method established to determine the content of atractylenolide Ⅰ of A. macrocephala by supercritical extraction is simple, sensitive, and reliable.
