Effect of phosphorus source
To choose a suitable phosphorus source for 5’-phosphodiesterase
production, three phosphorus sources, namely
K2HPO4, KH2PO4, and KH2PO4+K2HPO4 were investigated
at different concentrations. Among the phosphorous
sources, the highest enzyme activity value was 232
U/mL in K2HPO4 medium at fraction of 0.1 % (Table 5).