(S)-lactaldehyde + NADP(+) = methylglyoxal + NADPH + H(+)
(s)-lactaldehyde + nadp(+) = methylglyoxal + nadph + h(+)
(S)-lactaldehyde + NADP(+) = methylglyoxal + NADPH + H(+)
(s)-lactaldehyde + nadp(+) = methylglyoxal + nadph + h(+)