Extraction and antioxidant activities of cushaw polysaccharide

Extraction and antioxidant activities of polysaccharide from cushaw were studied. The crude polysaccharide was extracted with the hot-water. It proved that the CaCl2 method was very suitable for deproteinization to cushaw polysaccharide. The cushaw polysaccharide contained α/β glycosidic bonds. Moreover, it proved that the cushaw polysaccharide exhibited better antioxidant activities.