. "\"A fatty acid beta-oxidation pathway in which the initial step of each oxidation cycle, which converts an acyl-CoA to a trans-2-enoyl-CoA, is catalyzed by acyl-CoA dehydrogenase; the electrons removed by oxidation pass through the respiratory chain to oxygen and leave H2O as the product. Fatty acid beta-oxidation begins with the addition of coenzyme A to a fatty acid, and ends when only two or three carbons remain (as acetyl-CoA or propionyl-CoA respectively).\" [GOC:mah, MetaCyc:FAO-PWY, MetaCyc:PWY-5136]" . . "fatty acid beta-oxidation using acyl-CoA dehydrogenase" . "MetaCyc:FAO-PWY" . .