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Table 2 Optimization of fenvalerate degradation using response surface methodology

From: Biodegradation and metabolic pathway of fenvalerate by Citrobacter freundii CD-9

Run pH Fenvalerate concentration Inoculum amount Fenvalerate degradation (%)
1 0 0 0 85.2
2 −1 1 0 76.1
3 0 0 0 89.4
4 0 −1 −1 58.1
5 0 0 0 89.6
6 1 −1 0 58.9
7 0 1 1 59.9
8 0 −1 1 63.4
9 −1 0 1 77.4
10 1 1 0 71.7
11 0 1 −1 78.3
12 −1 0 −1 78.8
13 0 0. 0 87.8
14 −1 −1 0 73.8
15 0 0 0 87.9
16 1 0 1 56.9
17 1 0 −1 64.5
  1. pH: −1(5.5), 0 (6.5), 1 (7.5); Fenvalerate concentration (mg/L): −1 (65), 0 (75), 1 (85); Inoculum amount (%): −1 (5.0), 0(6.0), 1 (7.0)