Effect of Culture Conditions on the Production of an Extracellular Protease by Bacillus sp. Isolated from Soil Sample of Lavizan Jungle Park

Table 3

Effect of pH on growth and protease activity by Bacillus sp. strain CR-179 cultivated in a liquid medium containing starch (1%) and corn steep liquor (0.4%) in shake flasks during 24 h at 45°C.

Initial pH	Culture density (OD 600 nm)	Maximum enzyme activity (U/mL)
6	0.980	168.18
7	1.335	260.129
8	1.402	335.454
9	1.012	253.37
10	0.734	163.506