biotin + NAD(+) + H2O => biotinate sulfoxide + NADH + H(+)
biotin + nad(+) + h2o => biotinate sulfoxide + nadh + h(+)
biotin + NAD(+) + H2O => biotinate sulfoxide + NADH + H(+)
biotin + nad(+) + h2o => biotinate sulfoxide + nadh + h(+)