Table 1.
Sample | Metal Ion (µg/mL) | Enzymatic Activity (U/mg/min) | |
---|---|---|---|
Mg2+ | Zn2+ | ||
ALP (powder) | 0.151 | 0.107 | 474 |
F * CHI:GEL (1:1), ALP, GA | 0.068 | 0.038 | 91 |
G * CHI:GEL (1:1), ALP, GA, 0.01% MgCl2 | 0.091 | 0.049 | 122 |
H * CHI:GEL (1:1), ALP, GA, 0.1% MgCl2 | 3.750 | 0.057 | 286 |
I * CHI:GEL (1:1), ALP, GA, 0.2% MgCl2 | 5.812 | 0.081 | 237 |
F *—Cross-linked chitosan membrane with immobilized ALP; G *—Cross-linked chitosan membrane with immobilized ALP and 0.01% MgCl2; H *—Cross-linked chitosan membrane with immobilized ALP and 0.1% MgCl2; I *—Cross-linked chitosan membrane with immobilized ALP and 0.2% MgCl2.