|
Table 1. Experimental
design and results of the 22-full orthogonal design
with 3 repetitions at the center point. |
Run number |
Coded levels |
Actual values |
b-xylosidase
activity* (U/mL) |
b-xylosidase
recovery (%) |
||
CTAB
(M) |
Butanol (%) |
CTAB (M) |
Butanol (%) |
|||
|
1 |
-1 |
-1 |
0.15 |
15 |
0,73 |
21.8 |
|
2 |
+1 |
-1 |
0.35 |
15 |
0,63 |
0.0 |
|
3 |
-1 |
+1 |
0.15 |
39 |
0,81 |
16.5 |
|
4 |
+1 |
+1 |
0.35 |
39 |
0,76 |
17.4 |
|
5 |
0 |
+21/2 |
0.25 |
44 |
0,55 |
2.6 |
|
6 |
0 |
-21/2 |
0.25 |
10 |
0,65 |
0.0 |
|
7 |
21/2 |
0 |
0.39 |
27 |
0,6 |
0.0 |
|
8 |
-21/2 |
0 |
0.11 |
27 |
0,5 |
24.2 |
|
9 |
0 |
0 |
0.25 |
27 |
0,69 |
45.74 |
|
10 |
0 |
0 |
0.25 |
27 |
0,68 |
42.10 |
|
11 |
0 |
0 |
0.25 |
27 |
0,69 |
39.2 |
* solubilized precipitate |
|
|