In vitro antimicrobial activity of plant active components against Pseudomonas lundensis and Listeria monocytogenes

Abstract This work aimed to study the antimicrobial activity of eight various components plant origin on growth Pseudomonas lundensis and Listeria monocytogenes. Different in vitro methods were used: agar plate diffusion, micro atmosphere, hole micro-dilution, gradient-plate method. In first assay, p-cymene γ-terpinene did not inhibit tested bacteria therefore they used further experiments. Both α-pinene limonene only partially effective, but these screened for their partial inhibition. The other four completely inhibited bacteria. Using agar-well diffusion method showed that carvacrol thymol found be most effective active components, had minimum inhibitory concentration (MIC) at 1.563 mg/mL, however, case carvacrol, MIC was 7.813 μL/mL. Additionally, eugenol camphor show same results higher concentrations. Gradient determine values, which it has been proved possess strong activity, no observed with (100 μL/mL), while exhibited 1.887 mg/mL against P. 0.943 needed complete inhibition monocytogenes . Further experiments are optimum concentrations L.