The result showed the maximum zone of hydrolysis by 40% fraction followed by acetone precipitated fraction.
This result showed the maximum chitinase was precipitated at 40% salt concentration. This result was in co- relation with the result obtained by Chen et al. (2004) during the two step purification of the Bacillus circulans chitinase A expressed in E. coli periplasm. Similarly, the putative chitinase band (88kDa) with 40% ammonium sulphate fractionation gave the highest yield of the desired protein. Thus chitinase was better obtained by 40% ammonium sulphate fractionation.