Study on removal of protein from lentinan

In a condition of alkalescent solution,polysaccharide solution which has been extracted with heating water leaching from lentinus ododes was treated with CAS,enzyme-decomposing dialysis and active carbon to remove protein,then flocculated with organic mixed solvent to reclaim polysaccharide and frozen-dry to remove moisture.After been determined,protein and glucuronic acid have been removed cleanly,recovery of polysaccharide was 0.67%,color of sample was white.The results demonstrated that this method can efficiently remove protein,pectin,nucleic acid and so on.