Table 1 Low and high levels of medium components affecting pectinase production by A. niger according to PBED
Factors | Low level (− 1) | High level (+ 1) |
|---|---|---|
Pectin (g/L) | 10.00 | 30.00 |
(NH4)2SO4 (g/L) | 1.30 | 3.30 |
K2HPO4 (g/L) | 0.50 | 1.00 |
MgSO4.5H2O (g/L) | 0.05 | 0.50 |