D-arabinono-1,4-lactone + O2 => dehydro-D-arabinono-1,4-lactone + H2O2 + H(+)
d-arabinono-1,4-lactone + o2 => dehydro-d-arabinono-1,4-lactone + h2o2 + h(+)
D-arabinono-1,4-lactone + O2 => dehydro-D-arabinono-1,4-lactone + H2O2 + H(+)
d-arabinono-1,4-lactone + o2 => dehydro-d-arabinono-1,4-lactone + h2o2 + h(+)