Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effect of metal ions on Aspergillus niger purified phytase activity.
| Metal ion | 10 mM | 20 mM |
|---|---|---|
| MgSO4*7H2O | 138.94 | 129.22 |
| MnSO4 | 128.57 | 119.57 |
| CuSO4 | 135.27 | 125.80 |
| ZnCl2 | 112.84 | 104.94 |
| CaCl2 | 52.34 | 48.68 |
| Fe2(SO4)3 | 105.11 | 97.76 |
| Fe(SO4) | 102.85 | 95.65 |
| HgCl2 | 112.48 | 104.61 |
| CdCl2 | 125.73 | 116.93 |
| BaCl2 | 131.81 | 122.58 |
| NiCl2 | 99.63 | 92.66 |
| KCl | 98.21 | 93.30 |
| NaCl | 95.91 | 89.19 |
The 100% of phytase activity corresponds to a blank test, which was performed in the absence of said ions.
