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Table 2 Effects of variable metal ions on the keratinase activity

From: Production of surfactant-stable keratinase from Bacillus cereus YQ15 and its application as detergent additive

Metal ions

Relative activity (%) at 10 mM

Zn2+

160.39 ± 1.84c

Mn2+

287.86 ± 4.88a

Na+

120.48 ± 0.07e

Co2+

132.74 ± 2.47d

Fe3+

ND

Ca2+

170.61 ± 1.13b

Mg2+

160.70 ± 0.92c

K+

98.08 ± 0.49

Al3+

38.14 ± 1.34

Cu2+

ND

Pb2+

ND

Fe2+

57.28 ± 0.64

  1. ND means that no activity was detected
  2. Different letters represent a value significantly greater than the control value
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BMC Biotechnology

ISSN: 1472-6750

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