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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Tuesday 17 July 2018

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Chemical composition and Antibacterial power of Lavandula multifida L. essential oil against multiresistant strains of Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae isolated in hospital


Volume 9, Issue 2, September 2014, Pages 464–472

 Chemical composition and Antibacterial power of Lavandula multifida L. essential oil against multiresistant strains of Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae isolated in hospital

N'Dédianhoua K. SORO, Karima MAJDOULI, Kaoutar MOUTAOUAKIL, Fatima EL-HILALI, Youssef KHABBAL, Amar BENTAYEB, and Touryia ZAÏR

Original language: English

Received 2 August 2014

Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


Bacterial infectious diseases continue causing havoc while pharmaceutical firms produce less inhibitor against pathogens. In the frame of this anti infectious fight, we chose to work on Lavandula multifida L. (Lm) from Southern Morocco. Steam-distillation of the plant was done with Clevenger-type apparatus and Essential Oil (EO) obtained was analyzed by gas chromatography (GC) and mass spectrometry (MS). A phytochemical study of the species was also performed through standard qualitative reactions with specific reagents. Antibacterial activity of EO was first achieved through discs-diffusion tests against Escherichia coli (Ec0A, Ec0B), Pseudomonas aeruginosa (Psa0A, Psa0B) and Klebsiella pneumoniae (Kp0A, Kp0B). Then Minimal Inhibitory Concentrations (MIC) were determined by macrodilution method and Minimal Bactericidal Concentrations (MBC) were determined. Steam-distillation of the species yielded 2.01 ml of EO for 100g of dried matter and analyses revealed Phenol 2,3,5,6 tetramethyl as major component with 89.97%. Phytochemical tests proved the existence of polyphénols, triterpenes, sterols, mucilage and saponosids. Biological tests proved that this EO has a significant antibacterial power against the germs despite their resistance to Beta-lactamin, aminosid and polymyxin antibiotics. Extreme inhibition diameters were 37.3±4.4mm for Ec0B and 10.6±0.5mm for Psa0A. 0.6µl/ml was the MBC against Ec0A, 9.6µl/ml was the MBC obtained against Psa0A and Psa0B. This study, among the rare found about this species, confirms its utilization by local people to treat digestive and respiratory infections. Discovery of a chemotype is a good way to valorize the species. It could be easily isolated to serve as a model for new antibacterial drug.

Author Keywords: Chemical study, Lavandula multifida L, Antibacterial Activity, Multiresistant Bacteria.


How to Cite this Article


N'Dédianhoua K. SORO, Karima MAJDOULI, Kaoutar MOUTAOUAKIL, Fatima EL-HILALI, Youssef KHABBAL, Amar BENTAYEB, and Touryia ZAÏR, “Chemical composition and Antibacterial power of Lavandula multifida L. essential oil against multiresistant strains of Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae isolated in hospital,” International Journal of Innovation and Scientific Research, vol. 9, no. 2, pp. 464–472, September 2014.