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《Chemical Industry and Engineering Progress》 2009-02
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Optimization of ultrasonic extraction technology of podophyllotoxin from Sinopodophyllum emodi(Wall.)Ying

YANG Lei1,TANG Xiaoxi1,ZHAO Chunjian1,MA Chunhui1,ZU Yuangang1,YU Zhijia2 (1 Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040, Heilongjiang,China;2 Administration of Liupan Mountain National Natural Reserve,Guyuan 756401,Ningxia,China)  
The effects of extraction time,ethanol concentration,ratio of liquid to solid,and ultrasound power on extraction using ultrasound to extract podophyllotoxin from Sinopodophyllum emodi(Wall.)Ying were investigated. The extraction parameters were optimized by the response surface method (RSM) as follows:ethanol concentration of 55.43% alcohol,ratio of liquid to solid of 9.97∶1, extraction time of 49.87 minutes,ultrasound power of 206.71 W. The optimized extraction rate could reach 13.36% and the content of podophyllotoxin in lixivium was 2.78%. The optimized model by RSM agreed well with practice.
【Fund】: 国家科技支撑计划项目(2006BAD18B04)
【CateGory Index】: TQ461
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