SDS-PAGE analysis of the purified MDS I, molecular marker (lane 1), 10 µL MDS I from raw liquid (lane 2) and each elution after purification from ammonium sulphate precipitation (lane 3), Phenyl-HP (lane 4), Sephadex G25 (lane 5) was subjected to the 12% SDS-PAGE and stained by Coomassie blue.