Antibacterial activity of some folklore medicinal plants used by Bakhtiari tribal in Southwest Iran

Abstract

<p class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: justify; mso-layout-grid-align: none;"><span style="font-family: Times New Roman;"><span style="font-size: 10pt;">In this study, antibacterial activity of ethanol extract and essential oil of 10 Iranian folklore herbs including, <em>Heracleum</em> <em><span style="mso-spacerun: yes;"> </span>lasiopetalum</em> </span><span style="font-size: 10pt; mso-bidi-language: FA;">Boiss., </span><em><span style="font-size: 10pt; mso-font-kerning: 12.0pt;">Satureja bachtiarica </span></em><span style="font-size: 10pt; mso-bidi-language: FA;">Bunge., <em>Thymus</em> <em>daenensis</em> Celak., <em>Ziziphora</em> <em>teniur</em> L., <em>Echiophora</em> <em>platyloba</em> L., </span><em><span style="font-size: 10pt;">Dracocephalum multicaule </span></em><span style="font-size: 10pt; mso-bidi-language: FA;">Benth., </span><em><span style="font-size: 10pt;">Kelussia <em><em><span style="font-weight: normal; color: #000000;">odoratissima</span></em></em><span style="color: #000000;"> </span></span></em><span style="font-size: 10pt; mso-bidi-language: FA;">Mozff., <em>Mentha</em> <em>longifolia</em> Hudson., </span><em><span style="font-size: 10pt;">Achillea </span></em><span style="font-size: 10pt; color: #000000;"><span> <em>kellalensis</em> </span></span><span style="font-size: 10pt; mso-bidi-language: FA;">Boiss. and </span><em><span style="font-size: 10pt;">Stachys</span></em><span style="font-size: 10pt;"> <em>lavandulifolia</em> Vahl. were investigated against of </span><em><span style="font-size: 10pt; mso-bidi-language: FA;">Staphylococcus aureus</span></em><span style="font-size: 10pt; mso-bidi-language: FA;">, <em>Escherichia coli</em>, <em>Pseudomonas aeruginosa</em> and<em> Klebsiella pneumoniae</em></span><span style="font-size: 10pt;"> by agar disc diffusion and serial dilution assays.</span><span style="font-size: 10pt; mso-bidi-language: FA;"> Most of the </span><span style="font-size: 10pt;">extracts and essential oils showed relatively high </span><span style="font-size: 10pt; mso-bidi-language: FA;">antibacterial activity</span><span style="font-size: 10pt;"> against </span><span style="font-size: 10pt; mso-bidi-language: FA;">all the tested bacteria</span><span style="font-size: 10pt;"> with the diameter of </span><span style="font-size: 10pt; mso-bidi-language: FA;">inhibition zone ranging between 8 and 23 mm. Of the plants studied, the most active extracts were those obtained from </span><span style="font-size: 10pt;">essential oil of <em><span style="mso-font-kerning: 12.0pt;">Satureja bachtiarica </span></em></span><span style="font-size: 10pt; mso-bidi-language: FA;">and<em> Thymus</em> <em>daenensis</em>. The MIC values for active extract and </span><span style="font-size: 10pt;">essential oil </span><span style="font-size: 10pt; mso-bidi-language: FA;">ranging between 0.039 and 10 mg/ml. The results obtained appeared to confirm the antibacterial potential of the plants investigated</span><span style="font-size: 10pt;">. In conclusion it can be sa...

Antibacterial activity of the essential oils from the leaves of Eucalyptus globulus against Escherichia coli and Staphylococcus aureus

“…Some authors have reported that gram-negative microorganisms are slightly more sensitive to essential oils when compared to gram-positive [32][33][34][35][36][37][38][39][40][41][42] . The gram-positive and gram-negative microorganisms differ in several aspects other than with respect to the structure of their cellular walls, mainly with regard to the presence of lipoproteins and lipopolysaccharides in gram-negative bacteria that form a barrier to hydrophobic compounds [43,44] .…”

Isolation and Identification of Ferulic Acid From Aerial Parts of Kelussia odoratissima Mozaff

“…Besides, gastric acid secretion has been reduced meaningfully in rats fed with K. odoratissima , but pepsin secretion was unaffected (8). Essential oil of the plant showed a pronounced antibacterial effect (9) and folkloric proposed use of the plant as anti-inflammatory agent was confirmed via a carrageenan test (10). …”

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“…Furthermore, it was mentioned that phenolic compounds and flavanoids such as carvacrol and thymol extracted from savory can modulate gut bacteria through negative effect on harmful bacteria or increase the number of lactic acid bacteria in gut of rainbow trout (Pirbalouti, Jahanbazi, Enteshari, Malekpoor and Hamedi. 2010a;Pirbalouti, Malekpoor, Enteshari, Yousefi, Momtaz and Hamedi. 2010b;Pirbalouti, Broujeni, Momeni, Malek and Hamedi.…”