Table 2.

Effect of inducer (isobutyronitrile) concentration on the production of nitrilase by G. terrae at different incubation time periods

Inducer concentration (%, v/v) at 0, 16 and 24 h	Nitrilase activity (U/mg dcw) at different incubation time
	32 h	40 h	48 h	56 h
0.1	1.4	2.6	1.42	0.34
0.2	1.54	2.9	1.5	0.44
0.3	1.62	3.2	1.76	0.52
0.4	2.2	3.9	1.8	0.69
0.5	2.5	4.5	1.94	0.5
0.6	2.1	2.95	1.6	0.42
0.7	1.5	2.1	1.68	0.38
0.8	1.2	2.8	1.32	0.25
0.9	0.5	0.8	0.1	0.04
1.0	0.02	0.03	0.02	0.01

Bold values represent the maximum nitrilase activity at different incubation time with 0.5% inducer concentration