Antibacterial and Antibiofilm Effects Extracts From Elaeagnus Angustifolia,satureja Montana, Quercus Brantii, Tragopogon Dubius, Sonchus Asper, on the P.aeruginosa and S.aureus

Abstract

Background: Due to the increase in microbial resistance worldwide and the adverse effects of chemical drugs, the study of antimicrobial compounds in plant extracts as a new source of medicine can be effective in reducing or solving this problem. The purpose of this study antibacterial and antibiofilm effects extracts from Elaeagnus angustifolia,satureja montana, Quercus brantii,Tragopogon dubius,Sonchus asper, on the P.aeruginosa and S.aureus Methods: In this cross-sectional descriptive-analytical study, the study population is plants collected in Isfahan and Shahrekord and Pseudomonas and S.aureus bacteria isolated from clinical samples and standard strains. The sampling method was improbably simple and 120g was collected from each of the 9 plants and extracted by massage method. For the qualitative evaluation of antimicrobial properties, you used the agar well diffusion method and for quantitative evaluation of antimicrobial properties, you used the plate microtiter method. To evaluate the anti-biofilm properties, plate microtiter method, and staining by violet crystal were used. Results: Based on the findings of this study and the study of MBC and MIC of the mentioned plant extracts, it can be said that the best antibacterial effect on all studied strains belongs to the plant extracts of Quercus brantii, Elaeagnus angustifolia, satureja montana, Tragopogon dubius, and Sonchus asper, respectively. Among them, Quercus brantii extract has the best effect on all 4 strains. Also, in the study of anti-biofilm properties, it was observed that the Quercus brantii, satureja montana, and Elaeagnus angustifolia plant extracts had an anti-biofilm effect. Among them, respectively, the most belonging to the Quercus brantii, and the two extracts of Tragopogon dubius, and Sonchus asper do not have good anti-biofilm properties.Conclusions: According to the results of this study on the antimicrobial and antifouling properties of these extracts, it is possible to use this plant in the future with more studies and more work on these plants.