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Table 2 Plackett–Burman experimental design

From: Optimization of the culture condition of Bacillus mucilaginous using Agaricus bisporus industrial wastewater by Plackett–Burman combined with Box–Behnken response surface method

Code run

A [concentration (%)]

B (pH)

C [inoculum (%)]

D [loaded liquid (mL/250 mL)]

E (culture temperature (°C))

F [shaking speed (rpm)]

Total viable B. mucilaginous (107 Obj/mL)

1

1

− 1

1

1

1

− 1

1.15 ± 0.02

2

1

− 1

− 1

− 1

1

− 1

0

3

−1

1

1

1

− 1

− 1

5.30 ± 0.01

4

−1

1

1

− 1

1

1

1.78 ± 0.01

5

−1

− 1

1

− 1

1

1

3.75 ± 0.02

6

1

1

1

− 1

− 1

− 1

2.90 ± 0.01

7

−1

1

− 1

1

1

− 1

2.20 ± 0.01

8

−1

− 1

− 1

1

− 1

1

5.05 ± 0.03

9

1

1

− 1

− 1

− 1

1

5.10 ± 0.02

10

−1

− 1

− 1

− 1

− 1

− 1

1.25 ± 0.02

11

1

1

− 1

1

1

1

3.50 ± 0.03

12

1

− 1

1

1

− 1

1

4.17 ± 0.02