D-xylotetraose + O2 = D-xylotetraono-1,5-lactone + H2O2
d-xylotetraose + o2 = d-xylotetraono-1,5-lactone + h2o2
D-xylotetraose + O2 = D-xylotetraono-1,5-lactone + H2O2
d-xylotetraose + o2 = d-xylotetraono-1,5-lactone + h2o2