Table 2 Effect of different metal ions and compounds on chitosanase activity

None

100 ± 1.4

Mn²⁺

84 ± 2.3

Cu²⁺

125 ± 1.8

Zn²⁺

120 ± 2.4

Fe²⁺

83 ± 1.1

Fe³⁺

14 ± 1.9

K⁺

79 ± 2.0

Na⁺

87 ± 3.1

Ag⁺

19 ± 1.7

Ca²⁺

90 ± 2.5

Hg²⁺

12 ± 0.6

Mg²⁺

92 ± 1.8

Co⁺²

82 ± 2.4

β-mercaptoethanol

ND^b

Dithiothreitol

ND

Glutathione

ND

Acetone

88 ± 2.9

Ethanol

84 ± 3.1