Premium
Application of accelerated solvent extraction to the investigation of saikosaponins from the roots of Bupleurum falcatum
Author(s) -
Li Wei,
Liu Zhengbo,
Wang Zi,
Chen Li,
Sun Yinshi,
Hou Jingang,
Zheng Yinan
Publication year - 2010
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200900854
Subject(s) - chromatography , bupleurum , extraction (chemistry) , high performance liquid chromatography , chemistry , solvent , acetonitrile , methanol , volume (thermodynamics) , medicine , alternative medicine , organic chemistry , pathology , traditional chinese medicine , physics , quantum mechanics
Accelerated solvent extraction (ASE) was applied to the extraction of saikosaponin a, saikosaponin c and saikosaponin d from the roots of Bupleurum falcatum . Main extraction parameters such as the extraction solvents, extraction temperature and static extraction time were investigated and optimized. The optimized procedure employed 70% methanol as extraction solvent, 120°C of extraction temperature, 10 min of static extraction time, 60% of flush volume and the extraction recoveries of the three compounds were near to 100% with one extraction cycle. The extracted samples were analyzed by HPLC with UV detector. The HPLC conditions were as follows: Hypersil ODS2 (4.6 mm×250 mm, 5 μm) column, acetonitrile and water as mobile phase, flow rate of 1.0 mL/min, UV detection wavelength of 204 nm and injection volume of 20 μL. Compared with the traditional methods including heat‐reflux extraction and ultrasonic‐assisted extraction, the proposed ASE method was more efficient and faster to be operated. The results indicated that ASE was an alternative method for extracting saikosaponins from the roots of B. falcatum .