Table 2 Effect of metal ions on A. niger NRC114 α-galactosidase activity
Metal salt | Relative activity (%) | |
|---|---|---|
2.5 mM | 10 mM | |
Control | 100.00 ± 0.00 | 100.00 ± 0.00 |
MnCl2 | 25.88 ± 0.003 | 43.29 ± 1.54 |
HgCl2 | 12.78 ± 0.06 | 14.68 ± 0.49 |
CaCl2 | 101.62 ± 1.98 | ND |
KCl | 114.39 ± 0.00 | 86.68 ± 0.23 |
MgSO4 | 123.46 ± 3.14 | 101.90 ± 1.56 |
CoSO4 | 128.99 ± 0.67 | 95.07 ± 0.004 |
ZnSO4 | 111.87 ± 2.55 | 116.57 ± 2.67 |
CuSO4 | 93.73 ± 0.53 | 22.69 ± 0.37 |
EDTA | 104.37 ± 0.88 | 101.55 ± 1.92 |