Metal ions | Concentration (mmol/L) | Hydrolytic activity of different substrate | |
---|---|---|---|
Casein (%) | Keratin (%) | ||
CK | 0 | 100.00 | 100.00 |
Zn2+ | 2 | 97.00 | 95.48 |
Co2+ | 2 | 93.73 | 92.70 |
Mg2+ | 2 | 114.73 | 112.13 |
Ca2+ | 2 | 116.64 | 115.81 |
Mn2+ | 2 | 94.71 | 89.45 |
Ni2+ | 2 | 95.36 | 94.21 |
Cu2+ | 2 | 2.78 | 1.14 |