From: Characterization of a β-glucanase produced by Rhizopus microsporus var. microsporus, and its potential for application in the brewing industry
Ion
Residual activity (%)
Control
100
Cu+2 (12 mM)
0.3
Mg+2 (12 mM)
95.2
Fe+3 (12 mM)
89.6
Zn+2 (12 mM)
65.0
Mn+2 (12 mM)
62.3
Ca+2 (12 mM)
105.9
Al+3 (12 mM)
109.8