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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