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《Journal of Southwest University(Natural Science Edition)》 2009-01
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Studies on Extraction Process for Total Alkaloids in Stephania epigaea

LI Xing,HE Feng-fa,ZHANG Jian-jia School of Agronomy and Biotechnology,Southwest University,Chongqing 4000716,China  
The optimum extraction conditions for extracting total alkaloids from Stephania epigaea were studied in an orthogonal experiment,in which 4 factors (alcohol concentration,ethanol:S. epigaea ratio,ultrasonic extraction time and reflux time) were examined,with the extraction rate of total alkaloids as the final indicator. The optimum extraction technology was identified as:extraction solvent,75 percent ethanol; ethanol:S. epigaea ratio,12; ultrasonic extraction time,60 mim; and two refluxes,1 h for each time. The process proved to be simple and reasonable,with high extraction rate and good feasibility.
【CateGory Index】: R284
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