fa پژوهشي Research <span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:150%"><span calibri=""><b><span style="line-height:150%"><span new="" roman="" times="">Objective:</span></span></b><span style="line-height:150%"><span new="" roman="" times=""> Plants are an excellent source of phenolic compounds, which are among the most important antioxidant substances. The antioxidant properties of medicinal plants have prompted researchers to use them in the food, health and pharmaceutical industries. </span></span></span></span><br> <span style="line-height:150%"><span calibri=""><b><span style="line-height:150%"><span new="" roman="" times="">Methods:</span></span></b><span style="line-height:150%"><span new="" roman="" times=""> The purpose of the present study is to investigate the antioxidant properties of the methanol extract of the medicinal plants of <i>Salsola rigida (Salsola orientalis)</i> and wheat. The aerial parts of these plants were dried and ground. Then plant samples were prepared using homogenized methanol. Finally, the total antioxidant capacity of the mentioned plants was evaluated using ferric iron reducing antioxidant power (FRAP). </span></span></span></span><br> <span style="line-height:150%"><span calibri=""><b><span style="line-height:150%"><span new="" roman="" times="">Results:</span></span></b><span style="line-height:150%"><span new="" roman="" times=""> The results showed that the total antioxidant capacity for <i>Salsola rigida and </i>wheat was 0.77 and 2.20 Fe²⁺ mmol L^-1, respectively. Based on our findings, wheat showed strong antioxidant activity and <i>S. rigida</i> showed little antioxidant capacity. </span></span></span></span><br> <span style="line-height:150%"><span calibri=""><b><span style="line-height:150%"><span new="" roman="" times="">Conclusion:</span></span></b><span style="line-height:150%"><span new="" roman="" times=""> It is recommended to use the medicinal plants of <i>S.rigida</i> and wheat due to antioxidant effects against free radicals. Antioxidant medicines or supplements can be produced from the mentioned plants.</span></span></span></span><br> &nbsp;</span></span> Plant, Medicinal properties, Free radicals, Antioxidant, FRAP 1 6 http://pbp.medilam.ac.ir/browse.php?a_code=A-10-25-45&slc_lang=fa&sid=1 Damoun Razmjoue d.razmjoue@gmail.com 10031947532846005058 10031947532846005058 No Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran Department of Pharmacognosy, Faculty of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran Mohadeseh Pirhadi m.pirhadi371@gmail.com 10031947532846005059 10031947532846005059 No Department of Environmental Health, Food Safety Division, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran Amir Soltanbeigi amir.soltanbeigi@afsu.edu.tr 10031947532846005060 10031947532846005060 No Faculty of Pharmacy, Basic Pharmaceutical Sciences Dep., Medicinal & Aromatic Plants, Culture & Technology, Turkey Roman Lysiuk pharmacognosy.org.ua@ukr.net 10031947532846005061 10031947532846005061 Yes Department of Pharmacognosy and botany, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine Reza Asadzadeh dr.r_asadzadeh yahoo.com 10031947532846005062 10031947532846005062 No Department of Internal Medicine, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran