Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica · 2009
[Research of extracting and purifying taxol from the branches of Taxus media].
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Qiao Liangjie, Man Ruilin, Ni Wangdong, Liang Yonghuang
Аннотация
OBJECTIVE: The study was to explore extracting and purifying technology of taxol from the branches of Taxus media.
METHOD: In extracting phase, the solvent extraction, ultrasonic extraction and the supercritical CO2 fluid extraction were studied respectively; In purifying phase, the extracts were disposed by silica gel column chromatography and preparation lamella chromatography, then crystaled by N-Hexane. The content of taxol was detected by HPLC.
RESULT: The results showed that the recovery of extracting toxal with the method of ultrasonic was the highest and the selectivity of supercritical CO2 fluid extraction was the best; The sample after being extracted should be purified two stages by silica gel column chromatography with dichloromethane-chloroform-methane (53:44:3) as elution and the lamella chromatography was chloroform-ethyl acetate-methane (88:7:5) as elution, finally we reached the fawn crystal.
CONCLUSION: In that production, the content of taxol reached 87. 3% and the recovery 89.7%, which indicat that the taxol is well enrichment.
METHOD: In extracting phase, the solvent extraction, ultrasonic extraction and the supercritical CO2 fluid extraction were studied respectively; In purifying phase, the extracts were disposed by silica gel column chromatography and preparation lamella chromatography, then crystaled by N-Hexane. The content of taxol was detected by HPLC.
RESULT: The results showed that the recovery of extracting toxal with the method of ultrasonic was the highest and the selectivity of supercritical CO2 fluid extraction was the best; The sample after being extracted should be purified two stages by silica gel column chromatography with dichloromethane-chloroform-methane (53:44:3) as elution and the lamella chromatography was chloroform-ethyl acetate-methane (88:7:5) as elution, finally we reached the fawn crystal.
CONCLUSION: In that production, the content of taxol reached 87. 3% and the recovery 89.7%, which indicat that the taxol is well enrichment.