Reaction catalyzed by beta-amylase (3.2.1.2), maltose-forming alpha-amylase (3.2.1.B36), glucan 1,4-alpha-maltohydrolase (3.2.1.133)

		+		H2O	=	2		+
	maltopentaose	+		H2O	=		2 maltose	+		D-glucose