Anti-adhesion and antibiofilm activities of Lavandula mairei humbert essential oil against Acinetobacter baumannii isolated from hospital intensive care units

This study aimed to assess, for the first time, the anti-adhesion and antibiofilm effects of Lavandula mairei Humbert essential oil against multidrug resistant Acinetobacter baumannii. Scanning electron microscope was used for visualizing its antibiofilm activity and the effect of this oil on surfac...

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Bibliographic Details
Published in:Biofouling (Chur, Switzerland) Switzerland), 2022-11, Vol.38 (10), p.953-964
Main Authors: El Kheloui, Raja, Laktib, Asma, Elmegdar, Soufiane, Fayzi, Lahbib, Zanane, Chorouk, Msanda, Fouad, Cherifi, Khalil, Latrache, Hassan, Mimouni, Rachida, Hamadi, Fatima
Format: Article
Language:English
Subjects:
Acinetobacter baumannii
Adherent cells
Adhesion
anti-adhesion
Anti-Bacterial Agents - pharmacology
antibiofilm
Antibiotics
Antiinfectives and antibacterials
Biofilms
Carvacrol
Chemical analysis
Chemical composition
Essential oils
Hospitals
Intensive care units
Lavandula
Lavandula mairei
Lavandula mairei Humbert
Microbial Sensitivity Tests
Multidrug resistance
Oil
Oils, Volatile - pharmacology
Physicochemical processes
Polystyrene
Polystyrene resins
Scanning electron microscopy
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Summary:This study aimed to assess, for the first time, the anti-adhesion and antibiofilm effects of Lavandula mairei Humbert essential oil against multidrug resistant Acinetobacter baumannii. Scanning electron microscope was used for visualizing its antibiofilm activity and the effect of this oil on surface physicochemical parameters was examined as a possible anti-adhesive target. Chemical analysis of Lavandulaa mairei essential oil showed a high content of carvacrol composition (79.12%). The oil tested exhibited antibacterial efficacy with inhibition diameters of 33 to 37.33 mm and minimum inhibitory and bactericidal concentrations of 1.56 µl ml −1 . The oil inhibited adhesion by 83.66%, detach 73.30% of adherent cells and eliminated 64.02% of the biofilm compared to the untreated control. Lavandula mairei essential oil has proven its possible application as a preventive strategy by intervening in the initial adhesion of Acinetobacter baumannii to polystyrene.
ISSN:0892-7014
1029-2454
DOI:10.1080/08927014.2022.2149326