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. 2011 Nov 28;10:221. doi: 10.1186/1476-511X-10-221

Table 1.

Effect of some metal ions (2 mM) on alkaline lipase activity of Staphylococcus sp ESW.

Metal ions Relative lipase activity (%)
Ca2+ 120 ± 1.5
Mg2+ 108 ± 1.0
Zn2+ 110 ± 1.7
Mn2+
Cu2+
100 ± 1.5
100 ± 1.0
Ba2+ 100 ± 1.2
Control 100 ± 1.0

The activity was determined by incubating the crude enzyme in the presence of various metal ions (2 mM) under optimal conditions. The results are the mean ± S.D. of two independent experiments conducted in triplicate.