Purification and characterization of an amyloglucosidase from an ericoid mycorrhizal fungus (Leohumicola incrustata)

AMB Express

Table 2 Effect of the presence of metal ions on AMG activity

Metal ion	% Relative activity (10 mM)	% Relative activity (5 mM)	% Relative activity (1 mM)
Mg²⁺	98 ± 4.7	99 ± 6.33	100 ± 3.87
Na⁺	102 ± 9.78	100 ± 7.14	101 ± 6.14
K⁺	96 ± 5.66	99 ± 6.74	101 ± 6.97
Al³⁺	86 ± 3.05	95 ± 5.68	100 ± 4.27
Mn²⁺	112 ± 7.41	102 ± 2.8	100 ± 4.98
Ca²⁺	106 ± 5.95	100 ± 2.17	100 ± 2.31
Fe²⁺	98 ± 4.7	100 ± 1.18	100 ± 1.28
Co²⁺	77 ± 3.51	95 ± 2.93	100 ± 3.95
Hg²⁺	0.45 ± 0.05	59 ± 0.19	92 ± 2.23
Cd²⁺	4 ± 0.23	66 ± 2.17	100 ± 3.16