Table 3 Details of experimental attempts used in the response surface methodology (RSM) optimization.
Run | Coded levels | Results | |||
|---|---|---|---|---|---|
C/N ratio X1 | Inoclum size (%) X2 | NaCl (g/L) X3 | Total cell counts (108 cells/mL) | Insecticidal activity (%) | |
1 | − 1 | − 1 | 0 | 5.00 | 40.40 |
2 | 1 | − 1 | 0 | 4.00 | 37.84 |
3 | − 1 | 1 | 0 | 9.30 | 56.13 |
4 | 1 | 1 | 0 | 9.50 | 81.66 |
5 | − 1 | 0 | − 1 | 6.00 | 37.40 |
6 | 1 | 0 | − 1 | 7.80 | 47.79 |
7 | − 1 | 0 | 1 | 9.75 | 47.34 |
8 | 1 | 0 | 1 | 10.00 | 60.44 |
9 | 0 | − 1 | − 1 | 2.00 | 15.34 |
10 | 0 | 1 | − 1 | 6.00 | 50.18 |
11 | 0 | − 1 | 1 | 4.75 | 30.30 |
12 | 0 | 1 | 1 | 10.00 | 70.34 |
13 | 0 | 0 | 0 | 10.50 | 80.16 |
14 | 0 | 0 | 0 | 10.75 | 83.79 |
15 | 0 | 0 | 0 | 10.75 | 80.80 |
16 | 0 | 0 | 0 | 10.50 | 77.90 |
17 | 0 | 0 | 0 | 10.50 | 78.87 |
18 | 0 | 0 | 0 | 10.00 | 80.14 |