Significant increase in cyanide degradation by Bacillus sp. M01 PTCC 1908 with response surface methodology optimization

AMB Express

Table 2 Central composite design by screening the effective factors through the Plackett–Burman design

Coded values	Factors	Range examined	Levels
Coded values	Factors	Range examined	− α	− 1	0	+ 1	+ α
A	Temperature (°C)	25–48	25.2	30	37	44	48.7
B	Rotation speed (rpm)	95–264	96	130	180	230	264
C	Inoculation amount %	1.59–18.4	1.6	5	10	15	18.4