Reaction catalyzed by beta-glucosidase (3.2.1.21), glucan 1,3-beta-glucosidase (3.2.1.58), alpha-D-xyloside xylohydrolase (3.2.1.177)

		+		H2O	=			+
	4-nitrophenyl alpha-D-xylopyranoside	+		H2O	=		4-nitrophenol	+		D-xylose