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