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. 2020 Nov 2;14:4639–4658. doi: 10.2147/DDDT.S273322

Table 7.

Effect of Independent Process Variables on Dependent Variable by Box-Behnken Design (C-SD)

Preparation Code Real Value (Coded Level) Solaq (mg/mL) Rel5min (%)
Actual Predicted Actual Predicted
X1 X2 X3 Y1 Y1 Y2 Y2
P1 300 (−1.00) 600 (−1.00) 80 (0.00) 0.98 0.98 73.82 73.92
P2 700 (1.00) 600 (−1.00) 80 (0.00) 1.26 1.27 75.43 75.69
P3 300 (−1.00) 800 (1.00) 80 (0.00) 1.03 1.03 72.85 72.59
P4 700 (1.00) 800 (1.00) 80 (0.00) 1.27 1.27 75.24 75.14
P5 300 (−1.00) 700 (0.00) 70 (−1.00) 1.09 1.09 78.25 78.27
P6 700 (1.00) 700 (0.00) 70 (−1.00) 1.35 1.36 78.67 78.53
P7 300 (−1.00) 700 (0.00) 90 (1.00) 1.06 1.06 75.81 75.95
P8 700 (1.00) 700 (0.00) 90 (1.00) 1.30 1.31 80.03 80.01
P9 500 (0.00) 600 (−1.00) 70 (−1.00) 1.21 1.21 80.25 80.14
P10 500 (0.00) 800 (1.00) 70 (−1.00) 1.25 1.25 78.71 78.95
P11 500 (0.00) 600 (−1.00) 90 (1.00) 1.19 1.19 79.71 79.47
P12 500 (0.00) 800 (1.00) 90 (1.00) 1.19 1.20 78.68 78.79
P13 500 (0.00) 700 (0.00) 80 (0.00) 1.23 1.23 81.52 81.42
P14 500 (0.00) 700 (0.00) 80 (0.00) 1.22 1.23 81.04 81.42
P15 500 (0.00) 700 (0.00) 80 (0.00) 1.23 1.23 81.02 81.42
P16 500 (0.00) 700 (0.00) 80 (0.00) 1.23 1.23 81.50 81.42
P17 500 (0.00) 700 (0.00) 80 (0.00) 1.22 1.23 82.00 81.42

Notes: X1 – carrier concentration (mg); X2– stirring speed (rpm); and X3– temperature (°C) and Y1– aqueous solubility (mg/mL); and Y2– release at 5 minutes (%).