Purification, Characterization, and Potential of Saline Waste Water Remediation of a Polyextremophilic α-Amylase from an Obligate Halophilic Aspergillus gracilis

Table 2

Effect of various additives on the α-amylase from A. gracilis TISTR 3638.

Additives (2 mM)	Relative activity (%)
None	100
BaCl2	101.05±1.5
CaCl2	101.47±0.1
FeCl2	89.42±1.0
HgCl2	100.24±1.5
MgCl2	100.33±0.3
ZnCl2	90.38±1.5
b-Mercaptoethanol	98.01±0.5
EDTA	90.41±1.0