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. 2014 Mar 7;9(3):e91187. doi: 10.1371/journal.pone.0091187

Table 3. Effect of mental ions and EDTA on enzyme activities.

Chemicals AR relative activity (%) BDH relative activity (%)
1 mM 3 mM 1 mM 3 mM
Na+ 99.4±2.3 95.1±1.2 110.3±3.2 113.3±5.1
K+ 98.2±1.5 100.4±0.9 105.3±1.3 88.6±1.8
Mg2+ 93.6±3.1 96.4±2.4 124.8±2.1 133.9±2.9
Mn2+ 111.8±2.8 112.6±3.1 144.5±3.1 252.3±5.8
Zn2+ 10.8±2.1 7.7±0.4 15.5±0.8 0
Ca2+ 106.1±1.9 102.3±1.5 136.6±2.5 114.3 ±1.1
Cu2+ 31.5±0.8 23.1±0.5 21.3±0.8 0
EDTA 100.7±1.8 101.9±2.1 102.5±1.6 103.3±1.3