Purification, characterization, antioxidant and immunological activity of polysaccharide from Sagittaria sagittifolia L.

As a healthy food and traditional Chinese medicine, sagittaria sagittifolia L. has been used for a long history. Nevertheless, reports on the bioactivity and chemical characterization of S. sagittifolia L. polysaccharides are still very rare. In this paper, ultrasound-assisted method (UAE) was used to extract S. sagittifolia L. polysaccharides, after alcohol precipitation and column chromatography isolation, the structural characteristics,...