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Table 2 Factor values for independent variables and response variable (experimental and predicted) of screening experiments to optimize culture media composition

From: Vinasse: from a residue to a high added value biopolymer

Run C (g/L) N (g/L) Ph (g/L) P—experimental (mg/L h) P—predicted (mg/L h)
1 − 1 − 1 0 1.75 1.80
2 1 − 1 0 0.54 0.69
3 − 1 1 0 0.59 0.60
4 1 1 0 0.24 0.44
5 − 1 0 − 1 0.25 0.64
6 1 0 − 1 0.46 0.67
7 − 1 0 1 1.29 1.24
8 1 0 1 0.26 0.03
9 0 − 1 − 1 1.55 1.33
10 0 1 − 1 1.38 1.11
11 0 − 1 1 1.52 1.77
12 0 1 1 0.43 0.64
13 0 0 0 0.27 0.29
14 0 0 0 0.27 0.29
15 0 0 0 0.32 0.29
  1. C carbon; N nitrogen; Ph phosphorous; P PHB productivity