D-arabinonate + H(+) => D-arabinono-1,4-lactone + H2O
d-arabinonate + h(+) => d-arabinono-1,4-lactone + h2o
D-arabinonate + H(+) => D-arabinono-1,4-lactone + H2O
d-arabinonate + h(+) => d-arabinono-1,4-lactone + h2o