Reaction catalyzed by beta-glucosidase (3.2.1.21), beta-galactosidase (3.2.1.23), Sulfolobus solfataricus beta-glycosidase (3.2.1.B26), lactase (3.2.1.108)
+
H2O
=
2
gentiobiose
+
H2O
=
2 beta-D-glucose