Antibacterial and Antioxidant Properties of Scrophularia Striata Boiss. Methanolic Extract

Yasser Shahbazi

Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran.

Abstract

Scrophulariastriatabelongs to theScrophulariaceaefamily andwidely grows in the several regions throughout the world especially Iran, Turkey and Azerbaijan. The aims of the present study were to evaluate antibacterial activity of theS.striatamethanolic extract collected from west part of Iran by micro-broth dilution and agar disk diffusion assays, and also determine its antioxidant properties using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and thiobarbituric acid (TBA) methods. The most antibacterial activity was observed against Bacillus cereus, followed byB. subtilis, S. aureus. Listeria monocytogenes, Salmonellatyphimurium and Escherichia coli O157:H7, respectively. Moreover, the scavenging properties on DPPH radical scavenging and TBA of S. striatamethanolic extract were found to be 0.92 ± 0.21and 7.98 ± 0.23,respectively. The strong in vitroantibacterial and antioxidant activities of S. striatamethanolic extract supports its traditional application in the treatments and/or prevention of different diseases.

Keywords: Scrophulariastriata;Antibacterial; Antioxidant; Iran.