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In Vitro effects of petroleum ether, dichloromethane, methanolic and aqueous leaf extracts of Eucalyptus grandis on selected multidrug-resistant bacteria.
Kwansa-Bentum, Bethel; Okine, Beatrice Awuradwoa; Dayie, Alberta D; Tetteh-Quarcoo, Patience B; Kotey, Fleischer C N; Donkor, Eric S; Dayie, Nicholas T K D.
Afiliación
  • Kwansa-Bentum B; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana.
  • Okine BA; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana.
  • Dayie AD; Department of Chemistry, University of Cape Coast, Cape Coast, Ghana.
  • Tetteh-Quarcoo PB; Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana.
  • Kotey FCN; Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana.
  • Donkor ES; Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana.
  • Dayie NTKD; Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana.
PLoS One ; 18(3): e0283706, 2023.
Article en En | MEDLINE | ID: mdl-36996141
BACKGROUND: The emergence and spread of antimicrobial resistance is of grave concern, requiring the search for newer and more effective antimicrobials to combat infections caused by resistant microbes. This study assessed the antimicrobial effects of Eucalyptus grandis crude extracts against selected multidrug resistant bacteria. METHODOLOGY: Four different crude leaf extracts of E. grandis were prepared using petroleum ether, dichloromethane, methanol, and water, with the aid of the Soxhlet extraction method. These were screened against methicillin-resistant Staphylococcus aureus (MRSA), multidrug resistant Pseudomonas aeruginosa, and multidrug resistant Escherichia coli, using the agar well diffusion method. Phytochemical screening was carried out to evaluate the bioactive phytochemical constituents responsible for the antimicrobial effect. RESULTS: Each of the extracts, except for the one prepared from water, had antimicrobial activity against the screened bacteria. The non-polar petroleum ether extract had the highest antimicrobial activity (19.33-24.33 mm), including bactericidal effects, compared to the medium polar dichloromethane and polar methanol extracts, which recorded zone diameter ranges of 14.33-16.67 mm and 16.33-17.67 mm, respectively. The Gram-negative bacteria (E. coli and P. aeruginosa) were the least susceptible in comparison with the Gram-positive bacterium (MRSA), probably owing to differences in their cell wall structures. Furthermore, phytochemical screening indicated the presence of alkaloids, tannins, saponins, terpenoids, and flavonoids. CONCLUSION: The findings suggest that E. grandis could be potentially useful in the treatment of infections caused by multidrug resistant bacteria.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Petróleo / Eucalyptus / Staphylococcus aureus Resistente a Meticilina / Antiinfecciosos Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2023 Tipo del documento: Article País de afiliación: Ghana Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Petróleo / Eucalyptus / Staphylococcus aureus Resistente a Meticilina / Antiinfecciosos Idioma: En Revista: PLoS One Asunto de la revista: CIENCIA / MEDICINA Año: 2023 Tipo del documento: Article País de afiliación: Ghana Pais de publicación: Estados Unidos