Sulfated modification, characterization, antioxidant and hypoglycemic activities of polysaccharides from Sargassum pallidum

The aim of this study was to investigate the effect of sulfated modification on the in vitro antioxidant and hypoglycemic activities of Sargassum pallidum polysaccharides (SPP). Three sulfated derivatives (S-SPP1–4, S-SPP1–6 and S-SPP1–8) were prepared using chlorosulfonic acid-pyridine method under different reaction conditions. Physicochemical characterization indicated that sulfated modification had successfully occurred. The degrees of...