Antioxidant and Oxidative Stress

Abstract

Antioxidants are compounds that eliminate oxidative stress in biological systems. Oxidative stress is caused by various radicals formed in the system as a result of oxygen entering the biological system. Structures with unpaired electron are either free radicals or radical ions. Antioxidants neutralize free radicals or radical ions due to the unpaired electron in their structure. The radical ions formed as a result of oxidation is removed from the system without damaging the biological system with the effect of antioxidants. There are many free radicals and radical ions. Among these radical groups are radical ions formed by oxygen which are important for biological systems. Antioxidants are responsible for the destruction of such radicals.