Optimization of the Microwave-assisted Extraction Technology of Polysaccharides from Sophora tonkinensis

Orthogonal experimental design was used to optimize the extraction technology of polysaccharides from Sophora tonkinensis Gapnep..The content of total polysaccharides was determined by phenol-vitriolic colorimetry.The optimum extraction technology of polysaccharide was as followed,solid to liquid ratio,1∶10(m/V,g∶mL);extraction time,90 min;extracting twice.The content of polysaccharide was 3.62%.The method was simple,accurate,sensitive and suitable for extraction polysaccharide from S.tonkinensis.