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Table 1 Effects of additives (metal ions and chelator) on the activity of EndoPG

From: Heterologous expression of Aspergillus aculeatus endo-polygalacturonase in Pichia pastoris by high cell density fermentation and its application in textile scouring

Additive (1 mM final)

Relative activitya (%)

Control

100

Ca2+

99.75 ± 2.68

Cu2+

112.70 ± 5.02*

Fe2+

112.03 ± 0.61*

K+

99.90 ± 1.19

Li+

100.62 ± 2.74

Mg2+

95.55 ± 3.58

Mn2+

73.76 ± 2.56*

Na+

90.88 ± 2.29*

Zn2+

88.81 ± 3.43*

EDTA

98.39 ± 2.73

  1. aMean and standard deviations from triplicate experiments
  2. *Indicates significantly differently from control; p < 0.05
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BMC Biotechnology

ISSN: 1472-6750

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