Abstract
Mahdi Hajimohammadi*1, Hoda Ghasemi1 and Atena Vaziri Sereshk2 Author Affiliations 1Faculty of Chemistry, Kharazmi University, G. C, Mofateh, Tehran, Iran. 2Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Shahrak Gharb, Tehran, Iran Received: April 24, 2020 | Published: April 30, 2020 Corresponding author: Mahdi Hajimohammadi, Faculty of Chemistry, Kharazmi University, G. C, Mofateh, Tehran, Iran. DOI: 10.26717/BJSTR.2020.27.004491
Highlights
Reactive Oxygen Species (ROS) is a phrase used to describe ROS and free radicals derived from molecular oxygen such as superoxide (O2-2), hydrogen peroxide (H2O2), hydroxyl radical (OH⦁) and singlet oxygen (1O2) [1,2,3]
The interest in natural antioxidants has been increased since the application of the most widely used synthetic antioxidants such as Butylated Hydroxyanisole (BHA), Butylated Hydroxyl Toluene (BHT), Tert-Butyl Hydroquinone (TBHQ) and Propyl Gallate (PG) has been questioned because of possible toxic and carcinogenic components formed during their degradation [6]
Photooxygenation of oleic acid with H2TPP was investigated as a typical standard sample to evaluate singlet oxygen production and oleic acid oxidation monitored by 1H NMR and idometric method as a popular method [25]
Summary
ROS is a phrase used to describe ROS and free radicals derived from molecular oxygen such as superoxide (O2-2), hydrogen peroxide (H2O2), hydroxyl radical (OH⦁) and singlet oxygen (1O2) [1,2,3]. High levels of ROS can lead to cellular damage; oxidative stress and DNA damage [4]. Lipids due to the electrophilic inherent can be a target of ROS and converted to lipid hydroperoxides as primary product of fatty acid oxidation [5]. Antioxidants have important role to prevent oxidation biomolecular with inhabitation of Radical Chain Reaction (RCC). Phenolic compounds are the main class of natural antioxidants [7]. Plants and vegetables and their processing by-products are one of the most essential sources of natural antioxidants due to the abundance of phenolic compounds such as flavonoids [8]. Each ROS as a result of different nature of the electrons has its own characteristics. Dioxygen in its ground state has two unpaired electron in terms of quantum ground state is its triplet [10]
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