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Antibacterial effects of Apis mellifera and stingless bees honeys on susceptible and resistant strains of Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae in Gondar, Northwest Ethiopia.

Abstract

BACKGROUND

Honey is a natural substance produced by honeybees and has nutritional and therapeutic uses. In Ethiopia, honeys are used traditionally to treat wounds, respiratory infections and diarrhoea. Recent increase of drug resistant bacteria against the existing antibiotics forced investigators to search for alternative natural remedies and evaluate their potential use on scientific bases. Thus, the aim of this study was to evaluate the antibacterial effects of different types of honeys in Ethiopia which are used traditionally to treat different types of respiratory and gastrointestinal infections.

METHODS

Mueller Hinton agar (70191) diffusion and nutrient broth culture medium assays were performed to determine susceptibility of Staphylococcus aureus (ATCC 25923), Escherichia coli (ATCC 25922) and resistant clinical isolates (Methicillin resistant Staphylococcus aureus(MRSA), Escherichia coli(R) and Klebsiella pneumoniae (R), using honeys of Apis mellifera and stingless bees in northern and north western Ethiopia.

RESULTS

Honey of the stingless bees produced the highest mean inhibition (22.27 ± 3.79 mm) compared to white honey (21.0 ± 2.7 mm) and yellow honey (18.0 ± 2.3 mm) at 50% (v/v) concentration on all the standard and resistant strains. Stingless bees honey was found to have Minimum Inhibitory Concentration (MIC) of 6.25% (6.25 mg/ml) for 80% of the test organisms compared to 40% for white and yellow Apis mellifera honeys. All the honeys were found to have minimum bactericidal concentration (MBC) of 12.5% (12.5 mg/ml) against all the test organisms. Staphylococcus aureus (ATCC 25923) was susceptible to amoxicillin, methicillin, kanamycine, tetracycline, and vancomycine standard antibiotic discs used for susceptibility tests. Similarly, Escherichia coli (ATCC 25922) was found susceptible for kanamycine, tetracycline and vancomycine. Escherichia coli (ATCC 25922) has not been tested for amoxicillin ampicillin and methicillin. The susceptibility tests performed against Staphylococcus aureus (MRSA), Escherichia coli (R) and Klebsiella pneumoniae (R) using three of methicillin, erythromycin, ampicillin, Penicillin and amoxicillin discs were resistant. But, these drug resistant strains were susceptible to antibacterial agents found in the honeys and inhibited from 16 mm to 20.33 mm.

CONCLUSIONS

Honeys in Ethiopia can be used as therapeutic agents for drug resistant bacteria after pharmaceutical standardization and clinical trials.

Authors+Show Affiliations

No affiliation info availableDepartment of Parasitology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia. Wossensegedlemma@yahoo.com.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24138782

Citation

Ewnetu, Yalemwork, et al. "Antibacterial Effects of Apis Mellifera and Stingless Bees Honeys On Susceptible and Resistant Strains of Escherichia Coli, Staphylococcus Aureus and Klebsiella Pneumoniae in Gondar, Northwest Ethiopia." BMC Complementary and Alternative Medicine, vol. 13, 2013, p. 269.
Ewnetu Y, Lemma W, Birhane N. Antibacterial effects of Apis mellifera and stingless bees honeys on susceptible and resistant strains of Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae in Gondar, Northwest Ethiopia. BMC Complement Altern Med. 2013;13:269.
Ewnetu, Y., Lemma, W., & Birhane, N. (2013). Antibacterial effects of Apis mellifera and stingless bees honeys on susceptible and resistant strains of Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae in Gondar, Northwest Ethiopia. BMC Complementary and Alternative Medicine, 13, p. 269. doi:10.1186/1472-6882-13-269.
Ewnetu Y, Lemma W, Birhane N. Antibacterial Effects of Apis Mellifera and Stingless Bees Honeys On Susceptible and Resistant Strains of Escherichia Coli, Staphylococcus Aureus and Klebsiella Pneumoniae in Gondar, Northwest Ethiopia. BMC Complement Altern Med. 2013 Oct 19;13:269. PubMed PMID: 24138782.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antibacterial effects of Apis mellifera and stingless bees honeys on susceptible and resistant strains of Escherichia coli, Staphylococcus aureus and Klebsiella pneumoniae in Gondar, Northwest Ethiopia. AU - Ewnetu,Yalemwork, AU - Lemma,Wossenseged, AU - Birhane,Nega, Y1 - 2013/10/19/ PY - 2013/06/17/received PY - 2013/09/30/accepted PY - 2013/10/22/entrez PY - 2013/10/22/pubmed PY - 2014/11/13/medline SP - 269 EP - 269 JF - BMC complementary and alternative medicine JO - BMC Complement Altern Med VL - 13 N2 - BACKGROUND: Honey is a natural substance produced by honeybees and has nutritional and therapeutic uses. In Ethiopia, honeys are used traditionally to treat wounds, respiratory infections and diarrhoea. Recent increase of drug resistant bacteria against the existing antibiotics forced investigators to search for alternative natural remedies and evaluate their potential use on scientific bases. Thus, the aim of this study was to evaluate the antibacterial effects of different types of honeys in Ethiopia which are used traditionally to treat different types of respiratory and gastrointestinal infections. METHODS: Mueller Hinton agar (70191) diffusion and nutrient broth culture medium assays were performed to determine susceptibility of Staphylococcus aureus (ATCC 25923), Escherichia coli (ATCC 25922) and resistant clinical isolates (Methicillin resistant Staphylococcus aureus(MRSA), Escherichia coli(R) and Klebsiella pneumoniae (R), using honeys of Apis mellifera and stingless bees in northern and north western Ethiopia. RESULTS: Honey of the stingless bees produced the highest mean inhibition (22.27 ± 3.79 mm) compared to white honey (21.0 ± 2.7 mm) and yellow honey (18.0 ± 2.3 mm) at 50% (v/v) concentration on all the standard and resistant strains. Stingless bees honey was found to have Minimum Inhibitory Concentration (MIC) of 6.25% (6.25 mg/ml) for 80% of the test organisms compared to 40% for white and yellow Apis mellifera honeys. All the honeys were found to have minimum bactericidal concentration (MBC) of 12.5% (12.5 mg/ml) against all the test organisms. Staphylococcus aureus (ATCC 25923) was susceptible to amoxicillin, methicillin, kanamycine, tetracycline, and vancomycine standard antibiotic discs used for susceptibility tests. Similarly, Escherichia coli (ATCC 25922) was found susceptible for kanamycine, tetracycline and vancomycine. Escherichia coli (ATCC 25922) has not been tested for amoxicillin ampicillin and methicillin. The susceptibility tests performed against Staphylococcus aureus (MRSA), Escherichia coli (R) and Klebsiella pneumoniae (R) using three of methicillin, erythromycin, ampicillin, Penicillin and amoxicillin discs were resistant. But, these drug resistant strains were susceptible to antibacterial agents found in the honeys and inhibited from 16 mm to 20.33 mm. CONCLUSIONS: Honeys in Ethiopia can be used as therapeutic agents for drug resistant bacteria after pharmaceutical standardization and clinical trials. SN - 1472-6882 UR - https://www.unboundmedicine.com/medline/citation/24138782/Antibacterial_effects_of_Apis_mellifera_and_stingless_bees_honeys_on_susceptible_and_resistant_strains_of_Escherichia_coli_Staphylococcus_aureus_and_Klebsiella_pneumoniae_in_Gondar_Northwest_Ethiopia_ L2 - https://bmccomplementalternmed.biomedcentral.com/articles/10.1186/1472-6882-13-269 DB - PRIME DP - Unbound Medicine ER -