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Table 3 Influence of metal and EDTA at 5 mM on T. pseudokoningii α-amylase A4

From: Purification and characterization of α-amylase from Trichoderma pseudokoningii

Metal cations

Relative activity %

Control

100

Ca2+

152

Mg2+

134

Ni2+

100

Pb2+

80

Co2+

72

Hg2+

38

Cu2+

75

Zn2+

65

Cd2+

37

EDTA

28