octadecanoyl-CoA + 2 reduced [2Fe-2S]-[ferredoxin] + O2 + 2 H(+) => (9Z)-octadecenoyl-CoA + 2 oxidized [2Fe-2S]-[ferredoxin] + 2 H2O
octadecanoyl-coa + 2 reduced [2fe-2s]-[ferredoxin] + o2 + 2 h(+) => (9z)-octadecenoyl-coa + 2 oxidized [2fe-2s]-[ferredoxin] + 2 h2o