Reaction catalyzed by beta-galactosidase (3.2.1.23)

		+		H2O	=			+
	beta-D-Galp-(1->6)-beta-D-Galp-(1->6)-D-galactitol	+		H2O	=		beta-D-Galp-(1->6)-D-galactitol	+		D-galactopyranose