Investigation of Antibacterial and Anti-biofilm Activity of Thymbra spicata Essential Oil on Multidrug- Resistant Pseudomonas aeruginosa Strains
Abstract
Thymbra spicata has been used traditionally as herbal tea for
the treatment of some diseases such as asthma, bronchitis, respiratory, coughs,
and sore throat infection in Anatolia. In the current study, the essential oil
of T. spicata (EOTS) were
investigated for their antimicrobial, anti-biofilm activity and chemical
composition. The chemical composition of Thymbra
spicata was analyzed by gas chromatography-mass spectrometry (GC-MS).
Antimicrobial and anti-biofilm properties were determined using broth
microdilution methods. According to the results of the present study, the GC-MS
profile highlights that the mains compounds were found grandisol 21.99%,
cadinol 6.45%, lavandulol acetate 4.39%. The antibacterial activity of the EOTS
was evaluated by the micro-dilution method against multidrug resistant Pseudomonas aeruginosa. EOTS produced
inhibitory effects against the tested strains. It inhibited 11 clinical
isolates of against P. aeruginosa
with Minimum Inhibitory Concentration (MIC) values in the range of 1.56-12.5
μl/mL. Minimum Biofilm Inhibitory Concentration (MBIC) value was found to be
range of 3.12-25 (μl/mL) while the Minimum Biofilm Eradication Concentration
(MBEC) value was found to be 6.25-25 (μl/mL). MIC value of the EOTS was applied
onto the bacterial biofilm formations. It was seen that biofilm metabolism was
reduced by 2.0-51.6 %. The findings of this study show that EOTS has
antibacterial and anti-biofilm activity against P. aeruginosa isolates. Thus, essential oil of T. spicata may be useful a potential source for the treatment of
multidrug resistant P. aeruginosa
infections and biofilms.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Uğur Tutar
*
Türkiye
Publication Date
September 30, 2018
Submission Date
March 29, 2018
Acceptance Date
July 6, 2018
Published in Issue
Year 2018 Volume: 39 Number: 3