Table 4 Influence of metal ions and EDTA on the xylanolytic of LrXynA
Metal ions and EDTA | Relative xylanase activity (%) | |
|---|---|---|
1 mM | 5 mM | |
Control | 100 | 100 |
Ca2+ | 95.2 ± 2.6 | 170.5 ± 9.7 |
Cu2+ | 96.7 ± 8.2 | 72.9 ± 2.4 |
Fe2+ | 157.7 ± 0.8 | 298.3 ± 4.2 |
Hg2+ | 7.5 | 7.9 ± 6.0 |
Li+ | 98.4 ± 6.2 | 121.8 ± 4.4 |
Mg2+ | 119.4 ± 0.5 | 123.1 ± 11 |
Mn2+ | 137.3 ± 4.6 | 217.7 ± 4.1 |
Na+ | 105.9 ± 5.15 | 119.6 ± 6.3 |
Ni2+ | 103.7 ± 7.9 | 122.5 ± 13 |
Zn2+ | 132.2 ± 2.5 | 143.1 ± 11.4 |
EDTA | 97.3 ± 4.9 | 84.6 ± 9.9 |