Screening of multidrug-resistant bacteria of antibiotic-associated diarrhea and their inhibition by leaf extracts of Moringa oleifera Lamk

  • MM Akhtar Department of Botany, University of Rajshahi, Rajshahi-6205
  • MS Islam Department of Botany, University of Rajshahi, Rajshahi-6205
  • MF Begum Department of Botany, University of Rajshahi, Rajshahi-6205
  • M Anisuzzaman Department of Botany, University of Rajshahi, Rajshahi-6205
  • MF Alam Department of Botany, University of Rajshahi, Rajshahi-6205
Keywords: Antibiotic-associated diarrhea (AAD), Antibiotic susceptibility, Multidrug-resistant bacteria, Moringa oleifera Lamk., Minimum inhibitory concentrations (MIC)

Abstract

Context: Emergence of multi drug resistance bacteria (MDRB) to human pathogenic infection is increasing day by day but the number of new drugs to overwhelm the problem is not sufficient. Evidences revealed that Moringa oleifera Lamk. has various pharmaceutical activities like antibacterial, antifungal, antispasmodic, anti-inflammatory, anticancer and diuretic. Herbal treatment may be one of the possible ways to treat diseases caused by multidrug-resistant bacteria.

Objectives: The present research was undertaken to screen of multidrug resistant bacteria (MDRB) from antibiotic-associated diarrheal samples and to evaluate the potentiality of M. oleifera leaf extracts on these bacteria with the view to provide scientific evidence for its application in health remedy.

Materials & Methods: Antibiotic-associated diarrheal fecal specimens were collected from pediatric ward of Rajshahi Medical College and cultured onto MacConkey agar. MDRB were determined by antibiotic susceptibility test, using disc-agar diffusion method. Biochemical tests of the MDRB were done according to Bergeys Manual of Determinative Bacteriology for identification of the species. Dried and fresh leaf of M. oleifera was used to prepare exaction with or without solvents such as hot water, cold water, chloroform, petroleum ether, acetone and ethanol, separately. Antibacterial assay was done by disc diffusion method and minimum inhibitory concentration of the extracts was also measured.

Results: In the present study seven isolates were screened as MDRB and the highest prevalence (42.86%) was occurred in the age group of 25-36 months and the lowest (14.28) was in the group of <1 and 1-6 months. Ethanol extract of dried leaf of M. oleifera Lamk. showed moderate inhibitory activity against all of the isolates while petroleum ether, chloroform and acetone extracts of dried leaf have no inhibitory effect. Fresh leaf sap powder in DMSO exhibited strong inhibitory effect against all of the test bacteria where as hot aqueous extract could not show any inhibition. The minimum inhibitory concentrations (MIC) of the potent extracts ranged 937.5 to 3750 ?g/ml and 7.9 to 234.4 ?g/ml in dried and fresh leaf extracts, respectively.

Conclusion: The present data indicates that M. oleifera leaf extract possess antimicrobial potential to control of MDRB causes infection thus it can be used as a novel drugs in future.

DOI: http://dx.doi.org/10.3329/jbs.v20i0.17652

J. bio-sci. 20: 41-48, 2012

Downloads

Download data is not yet available.
Abstract
1109
PDF
798
Published
2014-01-13
How to Cite
Akhtar, M., Islam, M., Begum, M., Anisuzzaman, M., & Alam, M. (2014). Screening of multidrug-resistant bacteria of antibiotic-associated diarrhea and their inhibition by leaf extracts of Moringa oleifera Lamk. Journal of Bio-Science, 20, 41-48. https://doi.org/10.3329/jbs.v20i0.17652
Section
Articles