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Table 2 The Placket–Burman design matrix representing the coded values for independent factors and values of measured response

From: Optimization and enhancement of textile reactive Remazol black B decolorization and detoxification by environmentally isolated pH tolerant Pseudomonas aeruginosa KY284155

Run Factors Response
Glu Yeast NaCl NO3 Fe Mg pH Temp conc EDTA Acetate % decolorization
1 + + + + + + 8.65
2 + + + + + + 2.71
3 + + + + + + 11.78
4 + + + + + + 5.87
5 + + + + + + 46.91
6 + + + + + + 88.22
7 + + + + + + 29.42
8 + + + + + + 32.32
9 + + + + + + 21.04
10 + + + + + + 20.04
11 + + + + + + 66.45
12 0.88
13 0 0 0 0 0 0 0 0 0 0 0 65.2
  1. (0) represents the original concentration of each components under the control conditions, (−) represents the low level and (+) represents the high level for each factors
  2. Glu glucose concentration, Yeast yeast extract concentration, NO 3 sodium nitrate, Fe iron concentration, Mg magnesium concentration, conc dye concentration