Figure 1.

Extraction and structural analysis of Angelica sinensis polysaccharide. (a) Elution profile of ASP fraction on D315 column. (b) MW of ASP determined by gel chromatography, the retention time was 17.2 min while the MW was determined to be 3.2 kDa. (c) Resultant curve of Congo red experiment. Red shift could be observed suggesting that ASP possessed triple‐helical structure. (d) Monosaccharides compositions of ASP. The major monosaccharide components of ASP were mannose, rhamnose, glucuronic acid, galactose, arabinose, and xylose with weight ratio of 0.23:0.17:14.41:0.39:1.68:0.87