Reaction catalyzed by alpha-mannan endo-1,2-alpha-mannanase (3.2.1.198)

		+		H2O	=			+
	4-methylumbelliferyl (alpha-D-mannopyranosyl)-(1->3)-alpha-D-mannopyranoside	+		H2O	=		4-methylumbelliferone	+		(alpha-D-mannopyranosyl)-(1->3)-alpha-D-mannopyranoside