D-glucono-1,5-lactone + H2O <=> D-gluconate + H(+)
d-glucono-1,5-lactone + h2o <=> d-gluconate + h(+)
D-glucono-1,5-lactone + H2O <=> D-gluconate + H(+)
d-glucono-1,5-lactone + h2o <=> d-gluconate + h(+)