Table 1.
Response surface analysis program and results for the yield polysaccharides from D. devonianum flowers.
| Run | Temperature A: temperature (°C) |
Time B: extraction time (min) |
Factor 3 C: water-to-material ratio |
Yield of polysaccharides Y: (%) |
|---|---|---|---|---|
| 1 | 50 (−1) | 50 (0) | 25 (1) | 17.30 |
| 2 | 60 (0) | 60 (1) | 15 (−1) | 16.11 |
| 3 | 60 (0) | 40 (−1) | 25 (1) | 16.68 |
| 4 | 60 (0) | 50 (0) | 20 (0) | 21.22 |
| 5 | 70 (1) | 50 (0) | 15 (−1) | 16.22 |
| 6 | 50 (−1) | 50 (0) | 15 (−1) | 15.66 |
| 7 | 60 (0) | 40 (−1) | 15 (−1) | 15.41 |
| 8 | 60 (0) | 60 (1) | 25 (1) | 19.57 |
| 9 | 60 (0) | 50 (0) | 20 (0) | 19.4 |
| 10 | 50 (−1) | 60 (1) | 20 (0) | 16.37 |
| 11 | 50 (−1) | 40 (−1) | 20 (0) | 15.42 |
| 12 | 60 (0) | 50 (0) | 20 (0) | 19.02 |
| 13 | 60 (0) | 50 (0) | 20 (0) | 20.00 |
| 14 | 60 (0) | 50 (0) | 20 (0) | 19.94 |
| 15 | 70 (1) | 60 (1) | 20 (0) | 18.65 |
| 16 | 70 (1) | 40 (−1) | 20 (0) | 17.90 |
| 17 | 70 (1) | 50 (0) | 25 (1) | 18.58 |