Antioxidant, Biomolecule Oxidation Protective .
1. Introduction. Reactive oxygen species (ROS) comprise free radicals, such as superoxide anion (O 2 −) and hydroxyl (HO ·) radicals, and non-free radical species, such as H 2 O 2 and singlet oxygen (1 O 2), and these comprise different forms of activated oxygen [1,2,3].ROS are known to damage cellular membranes by inducing lipid peroxidation, damage DNA, proteins and lipids [].