Optimizing the extracting conditions of radix astragali

【Objective】Optimizing the best extracting process for Radix astragali.【Methods】With the content of Radix astragali armor glucoside as optimization targets.Optimizing the extraction factors.【Results】The major factors are extraction number of times,watering quantity and extracting time.The optimum condition for extraction were as followed:extracting the drugs three times in water;10,8 and 8 times of water;extracting 2.0,1.5 and 1.0 hours.【Conclusions】The technology is reasonable and practicable,which can be used as experimental basis for extraction technology for stragalin.