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