octadecanoate + reduced [NADPH--hemoprotein reductase] + O2 <=> 18-hydroxyoctadecanoate + oxidized [NADPH--hemoprotein reductase] + H2O + H(+)
octadecanoate + reduced [nadph--hemoprotein reductase] + o2 <=> 18-hydroxyoctadecanoate + oxidized [nadph--hemoprotein reductase] + h2o + h(+)