Specification :

The oxidized sturcture of conenzyme is shown on the top-right. The various kinds of coenzyme can be distinguished by the number of isoprenoid subunits in their side-chains. The most common xoenzyme in human mitochondria is coenzyme .The antioxidant nature of coenzyme derives from its energy carrier function. As an energy carrier, the coenzyme molecule is continually going through an oxidation-reduction cycle.As it accepts eletrons, it becomes electrons rather loosely, so this coenzym will quite easily give up one or both eletrons and , thus, act as an antioxidant.