Table 2 Effect of metal ions on enzyme activity and stability
Metal ions | Concentration (mM) | Residual activity (%) | |
|---|---|---|---|
Activity | Stability | ||
Control | Â | 100.0 | 100.0 |
CaCl2 | 5 | 156.4 | 125.4 |
10 | 184.4 | 160.3 | |
NiCl2 | 5 | 121.4 | 93.1 |
10 | 90.4 | 87.7 | |
FeSO4 | 5 | 112.9 | 100.8 |
10 | 102 | 86.5 | |
MgCl2 | 5 | 145.9 | 115.6 |
10 | 175.1 | 130.3 | |
CuSO4 | 5 | 87.4 | 82.5 |
10 | 56.7 | 49.5 | |
HgCl2 | 5 | 46 | 52 |
10 | 25 | 32 | |
MnCl2 | 5 | 76.9 | 83.9 |
10 | 61.9 | 50.2 | |
KCl | 5 | 100.2 | 106.4 |
10 | 92.1 | 90.1 | |
NaCl | 5 | 127.8 | 101.4 |
10 | 141.4 | 125.3 | |
ZnSO4 | 5 | 95 | 76 |
10 | 63 | 59 | |