Research Article
Polysaccharides of Scrophularia ningpoensis Hemsl.: Extraction, Antioxidant, and Anti-Inflammatory Evaluation
Table 4
Box-Behnken design with independent variables and response values.
| Run | Independent variables | Response | X1 (°C) | X2 (W) | X3 (min) | Experimental yield (%) | Predicted yield (%) |
| 1 | −1 (30) | −1 (285) | 0 (25) | 11.55 ± 0.99 | 11.68 | 2 | 1 (70) | −1 (285) | 0 (25) | 11.36 ± 1.01 | 11.43 | 3 | −1 (30) | 1 (665) | 0 (25) | 12.23 ± 1.11 | 12.16 | 4 | 1 (70) | 1 (665) | 0 (25) | 12.82 ± 0.87 | 12.69 | 5 | −1 (30) | 0 (745) | −1 (15) | 10.56 ± 0.69 | 10.73 | 6 | 1 (70) | 0 (745) | −1 (15) | 11.41 ± 0.88 | 11.64 | 7 | −1 (30) | 0 (745) | 1 (35) | 12.27 ± 1.00 | 12.04 | 8 | 1 (70) | 0 (745) | 1 (35) | 11.59 ± 0.93 | 11.42 | 9 | 0 (50) | −1 (285) | −1 (15) | 11.37 ± 1.12 | 11.07 | 10 | 0 (50) | 1 (665) | −1 (15) | 11.88 ± 0.77 | 11.78 | 11 | 0 (50) | −1 (285) | 1 (35) | 11.37 ± 0.83 | 11.47 | 12 | 0 (50) | 1 (665) | 1 (35) | 12.19 ± 1.03 | 12.49 | 13 | 0 (50) | 0 (745) | 0 (25) | 13.22 ± 1.10 | 13.38 | 14 | 0 (50) | 0 (745) | 0 (25) | 13.71 ± 1.63 | 13.38 | 15 | 0 (50) | 0 (745) | 0 (25) | 13.39 ± 0.92 | 13.38 | 16 | 0 (50) | 0 (745) | 0 (25) | 13.49 ± 0.88 | 13.38 | 17 | 0 (50) | 0 (745) | 0 (25) | 13.08 ± 1.12 | 13.378 |
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Data show mean ± SD (n = 3).
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