a biochemical analysis , utilizing chondroitinase abc and nitrous acid , followed by cellulose acetate electrophoresis , demonstrated the synthesis of a non-sulphated fraction , i.e . hyaluronic acid and/or chondroitin , and a sulphated fraction , comprising two undersulphated components , i.e . chondroitin sulphate , and heparan sulphate or heparin .
C0008454
chondroitin
C0008466
chondroitin sulphate