Research Article
Optimization of Xylanase Production from Aspergillus foetidus in Soybean Residue
Table 1
Code and level of factors chosen for the trials for xylanase FD1 and FD2.
| Independent variable | Symbol | Range and level |
| Xylanase FD1 | | −1.68 | −1 | 0 | +1 | +1.68 | Agitation (rpm) | | 86 | 100 | 120 | 140 | 154 | Temperature (°C) | | 18 | 22 | 28 | 34 | 38 | Ph | | 3.6 | 5 | 7 | 9 | 10.3 |
| Xylanase FD2 | | | | | | | Agitation (rpm) | | 60 | 84 | 120 | 156 | 180 | Temperature (°C) | | 10 | 17 | 28 | 39 | 46 | pH | | 3.6 | 5 | 7 | 9 | 10.3 |
|
|