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. 2019 Mar 8;7(3):74. doi: 10.3390/microorganisms7030074

Table 4.

Box Behnken matrix and response results for optimization of protease.

Run Factors Protease Activity U/mL
X1 (°C) X2 (g/L) X 3 Experimental Predicted
1 −1 −1 0 417.57 386.82
2 1 −1 0 6.20 4.80
3 −1 1 0 328.69 529.61
4 1 1 0 7.61 6.58
5 −1 0 −1 144.73 122.41
6 1 0 −1 3.73 4.71
7 −1 0 1 390.76 309.52
8 1 0 1 1.05 1.24
9 0 −1 −1 329.40 315.42
10 0 1 −1 441.55 431.85
11 0 −1 1 177.04 257.53
12 0 1 1 480.34 352.59
13 0 0 0 398.52 329.56
14 0 0 0 292.72 329.56
15 0 0 0 306.83 329.56