Objective:To establish a feasible method for extracting polysaccharide from the discarded fibrous roots of Radix Panacis Quingueforlii afterpanaquilon had been extracted, and determine the polysaccharide content. Methods:Enzymolysis technique and alcohol was applied for decolorization, and phenol-sulfuric-acid method was used to determine the active polysaccharide content.The content of trace element and heavy mental was measured by element-analyzer and atomic fluorescence photometer respectively. Results: The yield of polysaccharide from the fibrous roots was close (about 11.7%) to the main root.And the content of heavy metal can match the national standard.Conclusion:It is valuable to extract the polysaccharide from the discarded fibrous root of Radix Panacis Quingueforlii.

Objective:To establish a feasible method for extracti ng polysaccharide from the discarded fibrous roots of Radix Panacis Quingueforli i afterpanaquilon had been extracted, and determine the polysaccharide content. Methods:Enzymolysis technique and alcohol was applied for decolorization, and ph enol-sulfuric-acid method was used to determine the active polysaccharide conte nt.The content of trace element and heavy mental was measured by element-analyze r and atomic fluorescence photometer respectively. Results: The yield of polysac charide from the fibrous roots was close (about 11.7%) to the main root.And the content of heavy metal can match the national standard.Conclusion:I t is valuable to extract the polysaccharide from the discarded fibrous root of R adix Panacis Quingueforlii.