Table 2.
Box–Benkhen design of the independent variables and experimental values of Potentilla anserina L. polysaccharides yield (Y).
| No. | Factor | Y (PAPs extraction yield)/% | ||
|---|---|---|---|---|
| X 1 -enzyme ratio | X 2 -extraction pH | X3-extraction temperature /°C | ||
| 1 | −1 | −1 | 0 | 16.02 ± 0.890 |
| 2 | 1 | −1 | 0 | 16.78 ± 0.335 |
| 3 | −1 | 1 | 0 | 17.17 ± 0.470 |
| 4 | 1 | 1 | 0 | 16.98 ± 0.530 |
| 5 | −1 | 0 | −1 | 15.38 ± 0.287 |
| 6 | 1 | 0 | −1 | 15.86 ± 0.398 |
| 7 | −1 | 0 | 1 | 14.74 ± 0.688 |
| 8 | 1 | 0 | 1 | 15.14 ± 0.736 |
| 9 | 0 | −1 | −1 | 14.85 ± 0.430 |
| 10 | 0 | 1 | −1 | 15.62 ± 0.099 |
| 11 | 0 | −1 | 1 | 13.88 ± 0.131 |
| 12 | 0 | 1 | 1 | 15.76 ± 0.470 |
| 13 | 0 | 0 | 0 | 19.83 ± 0.519 |
| 14 | 0 | 0 | 0 | 19.57 ± 0.489 |
| 15 | 0 | 0 | 0 | 19.79 ± 0.037 |
| 16 | 0 | 0 | 0 | 19.91 ± 0.910 |
| 17 | 0 | 0 | 0 | 19.88 ± 0.531 |