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Table 1 CCI design matrix presenting the normalized and the real values for each run

From: Determinants on an efficient cellulase recycling process for the production of bioethanol from recycled paper sludge under high solid loadings

Run Normalized value Real value
X 1 X 2 X1 [% (w/v)] X2 (FPU/gcellulose)
1 − 1 − 1 14 20
2 − 1 0 14 25
3 − 1 + 1 14 30
4 0 + 1 18 30
5 + 1 + 1 22 30
6 + 1 0 22 25
7 + 1 − 1 22 20
8 0 − 1 18 20
9 0 0 18 25
10 0 0 18 25
11 0 0 18 25
12 0 0 18 25
13 − 0.7 − 0.7 15.2 21.5
14 − 0.7 + 0.7 15.2 28.5
15 + 0.7 + 0.7 20.8 28.5
16 + 0.7 − 0.7 20.8 21.5
  1. X 1 nRPS solid concentration, X 2 enzyme dosage