L-rhamnonate + H(+) => L-rhamnono-1,4-lactone + H2O
l-rhamnonate + h(+) => l-rhamnono-1,4-lactone + h2o
L-rhamnonate + H(+) => L-rhamnono-1,4-lactone + H2O
l-rhamnonate + h(+) => l-rhamnono-1,4-lactone + h2o