Sulfated polysaccharide

Sulfated polysaccharides are biopolymers found throughout life. These polysaccharides have sulfate groups attached to the sugar subunits. Brown seaweed and red seaweeds contain large amounts of these materials. Some of these natural materials are of practical value, e.g. as precursors to agar. Some sulfated polysaccharides are bioactive fucoidan and heparin.