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Table 4 Effect of ethanol concentration on recombinant Arthrobacter sp. 32c β-D-galactosidase activity.

From: A new cold-adapted β-D-galactosidase from the Antarctic Arthrobacter sp. 32c – gene cloning, overexpression, purification and properties

Ethanol [% v/v]

Relative activity [%] pH 5.5

Relative activity [%] pH 6.5

0

100

100

1

109 ± 2.0

102 ± 2.4

2

111 ± 2.2

107 ± 3.0

4

114 ± 2.7

109 ± 2.6

6

116 ± 2.5

110 ± 2.4

8

120 ± 2.1

111 ± 2.4

10

119 ± 2.3

109 ± 2.5

12

117 ± 1.9

107 ± 2.6

14

109 ± 2.2

105 ± 2.4

16

108 ± 2.1

103 ± 2.5

18

105 ± 2.7

102 ± 2.7

20

103 ± 2.9

101 ± 3.1