Another fatty acid oxidation pathway known as ω-oxidation also occurs in the peroxisomes.
It is normally a minor oxidation pathway operating on medium chain fatty acids (10-12 carbons), but gains importance
When β-oxidation is not functional (MCAD deficiency), the terminal carbon i.e. the ω-carbon is used to get electrons to form ATP.
The is ω-carbon converted into a carboxyl carbon by removal of H