Abstract:

In order to determine the content of polysaccharide in the residue of polygonatum kingianumfrom Yunnan Province, the total polysaccharides was extracted by thermal reflux method, and the stand-ard curve was obtained with glucose as control. The polysaccharide content was determined by sulfuricacid-phenol and ultraviolet spectrophotometer. The results show that the linear correlation coefficient wasnot less than 0. 999% , the relative standard deviation was not more than 3% , and the accuracy wasgood. The average recovery rate was 99. 40% . The average content of polysaccharide in the six batches otsamples was 4.47%  and the experimental results can provide some reference for comprehensive utilization of polygonatum kingianum.

Key words: polygonatum kingianum, residue, polysaccharide, determination