藏药“生等”中墨沙酮成分的超临界CO_2萃取工艺研究

SUPERCRITICAL CO_2 FLUID EXTRACTION OF MAESOPSIN FROM Rhamnella gilgitica

用超临界CO2流体萃取法对藏药“生等”（RhamnellagilgilitcaMansf．etMelch．）的主要成分墨沙酮（Maesopsin）的萃取进行了研究，探讨了压力、温度、夹带剂流量对革取效率的影响；并用HPLC法作了含量测定．结果表明，本法提取率约为超声波军取法的1．2倍。

A Study on supercritical CO2, fluid extraction of maesopsin (Ⅰ ), a major constituent of Shengdeng (Rhamneta gilgitica Mansf. et Melch, Rhamnaceae ), a traditional Tibetan medicinal herb, was made. The parameters innuencing the extraction efficiency including temperature, pressure and the volumes of entrainer were investigated. The assay of (Ⅰ ) was performed by HPLC. The results showed tbat CO2,-SFE was about 1. 2 times as extraction rate of ultrasonic extraction.