Table 2 CCD matrix and corresponding response values
Run order | Point type | A | B | C | D | Arabitol (g/L) | Yield (g/g) |
|---|---|---|---|---|---|---|---|
1 | Factorial | + 1 | − 1 | − 1 | + 1 | 3.4 | 0.070 |
2 | Axial | 0 | + α | 0 | 0 | 20.1 | 0.253 |
3 | Axial | − α | 0 | 0 | 0 | 1.8 | 0.077 |
4 | Center | 0 | 0 | 0 | 0 | 16.2 | 0.220 |
5 | Axial | 0 | 0 | 0 | − α | 15.6 | 0.196 |
6 | Factorial | + 1 | + 1 | − 1 | + 1 | 18.9 | 0.204 |
7 | Factorial | − 1 | − 1 | + 1 | + 1 | 6.6 | 0.134 |
8 | Axial | 0 | -α | 0 | 0 | 4.5 | 0.079 |
9 | Center | 0 | 0 | 0 | 0 | 17.4 | 0.212 |
10 | Factorial | − 1 | + 1 | − 1 | − 1 | 7.3 | 0.147 |
11 | Axial | 0 | 0 | − α | 0 | 19.2 | 0.250 |
12 | Factorial | − 1 | + 1 | + 1 | − 1 | 12.4 | 0.244 |
13 | Center | 0 | 0 | 0 | 0 | 19.0 | 0.236 |
14 | Factorial | + 1 | + 1 | + 1 | − 1 | 24.0 | 0.293 |
15 | Factorial | + 1 | − 1 | + 1 | − 1 | 10.2 | 0.177 |
16 | Factorial | + 1 | − 1 | + 1 | + 1 | 14.7 | 0.251 |
17 | Axial | 0 | 0 | + α | 0 | 20.4 | 0.246 |
18 | Factorial | − 1 | − 1 | − 1 | − 1 | 6.4 | 0.137 |
19 | Factorial | − 1 | + 1 | + 1 | + 1 | 11.7 | 0.205 |
20 | Center | 0 | 0 | 0 | 0 | 19.0 | 0.228 |
21 | Factorial | + 1 | + 1 | − 1 | − 1 | 21.0 | 0.199 |
22 | Factorial | − 1 | − 1 | − 1 | + 1 | 5.9 | 0.121 |
23 | Axial | + α | 0 | 0 | 0 | 8.6 | 0.189 |
24 | Factorial | + 1 | − 1 | − 1 | − 1 | 1.9 | 0.068 |
25 | Center | 0 | 0 | 0 | 0 | 16.0 | 0.221 |
26 | Factorial | − 1 | − 1 | + 1 | − 1 | 12.0 | 0.253 |
27 | Axial | 0 | 0 | 0 | + α | 20.0 | 0.230 |
28 | Factorial | + 1 | − 1 | + 1 | + 1 | 28.0 | 0.291 |
29 | Factorial | − 1 | + 1 | − 1 | + 1 | 6.6 | 0.140 |
30 | Center | 0 | 0 | 0 | 0 | 18.3 | 0.240 |