lactobiono-1,5-lactone + H2O <=> lactobionate + H(+)
lactobiono-1,5-lactone + h2o <=> lactobionate + h(+)
lactobiono-1,5-lactone + H2O <=> lactobionate + H(+)
lactobiono-1,5-lactone + h2o <=> lactobionate + h(+)