Optimizing technology on the extraction of medicinal active component polysaccharide from radix pseudostellariae

Objective:In order to develop and use the polysaccharide in radix pseudostellariae well. Methods:The technology of ultrasonic extraction of polysaccharide in radix pseudostellariae was studied,and the orthogonal test and single factor test were respectively performed on the solid-liquid ratio,temperature,and period and times of the extraction. Results:The best technology was 1:20 in solid-liquid ratio,temperature 60 ℃,period 4 min,extracting 3 times. Conclusion:This method is easy to operate,rapid to extract,and able to obtain the high content of polysaccharide.