5-dehydro-D-fructose + NADPH + H(+) => keto-L-sorbose + NADP(+)
5-dehydro-d-fructose + nadph + h(+) => keto-l-sorbose + nadp(+)
5-dehydro-D-fructose + NADPH + H(+) => keto-L-sorbose + NADP(+)
5-dehydro-d-fructose + nadph + h(+) => keto-l-sorbose + nadp(+)