Evaluation of Antioxidant Activity and Phenol Compounds under the Effect of Treatment withUV-C IrradiationMehrnoosh Kahvaei1, Fariba khalili12,*1-Department of Horticultural Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran2- Medicinal plants research center, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.* Corresponding author e-mail: f.khalili@khuisf.ac.irReceived: 10 November 2021 Accepted: 10 January 2022AbstractBasil (Ocimum basilicum L.) Lamiaceae is the most important medicinal plants. Much of the essential oils of basil essential oil phenylpropanoids which 90% are included. Important phenylpropanoid compounds include. The experiment was done in a randomized complete block design (RCBD) with factorial arrangements with 3 levels of UV-C Radiation (1/5- 4/5- 10 KJ M-2S-1) and Changes in Antioxidant activity and phenolic compounds were evaluated during five different stages. The amount of Antioxidant activity the gene expression was not affected by ultraviolet radiation treatment, and the expression level increased in control samples compared to other samples Furthermore, phenolic compounds were tested. UV-C treatment at the level of 10 kJ M-2S-1their expression levels increased.Keywords: Ultraviolet radiation, Antioxidant, Phenol, Basil Manuscript profile