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Seasonal effect on Brazilian propolis antibacterial activity.

Abstract

The behavior of microorganisms towards the antibiotic action of propolis has been widely investigated. Since reports dealing with seasonal effect on propolis activity are not available, this assay was carried out aiming to observe the in vitro antimicrobial activity of propolis, collected during the four seasons, on bacterial strains isolated from human infections. Dilution of ethanolic extract of propolis (EEP) in agar was the method performed, with serial concentrations ranging from 0.4 to 14.0% (% v/v). The behavior of some bacteria was analysed according to the incubation period in medium plus propolis, and the survival curve was plotted. It was verified that the growth of Gram-positive bacteria is inhibited by low propolis concentrations (0.4%) whereas Gram-negative bacteria were less susceptible to this substance, the minimal inhibitory concentration ranging from 4.5 to 8.0%. There was no significant difference with regards to the seasonal effect on the survival curve of Staphylococcus aureus and Escherichia coli; after incubation with propolis, there was an efficient antimicrobial action, mainly towards Gram-positive bacteria.

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  • Publisher Full Text
  • Authors+Show Affiliations

    ,

    Department of Microbiology and Immunology, Biosciences Institute, UNESP, 18618-000, SP, Botucatu, Brazil.

    , , ,

    Source

    Journal of ethnopharmacology 73:1-2 2000 Nov pg 243-9

    MeSH

    Anti-Bacterial Agents
    Bacteria
    Brazil
    Humans
    Microbial Sensitivity Tests
    Propolis
    Seasons

    Pub Type(s)

    Comparative Study
    Journal Article

    Language

    eng

    PubMed ID

    11025162

    Citation

    Sforcin, J M., et al. "Seasonal Effect On Brazilian Propolis Antibacterial Activity." Journal of Ethnopharmacology, vol. 73, no. 1-2, 2000, pp. 243-9.
    Sforcin JM, Fernandes A, Lopes CA, et al. Seasonal effect on Brazilian propolis antibacterial activity. J Ethnopharmacol. 2000;73(1-2):243-9.
    Sforcin, J. M., Fernandes, A., Lopes, C. A., Bankova, V., & Funari, S. R. (2000). Seasonal effect on Brazilian propolis antibacterial activity. Journal of Ethnopharmacology, 73(1-2), pp. 243-9.
    Sforcin JM, et al. Seasonal Effect On Brazilian Propolis Antibacterial Activity. J Ethnopharmacol. 2000;73(1-2):243-9. PubMed PMID: 11025162.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Seasonal effect on Brazilian propolis antibacterial activity. AU - Sforcin,J M, AU - Fernandes,A,Jr AU - Lopes,C A, AU - Bankova,V, AU - Funari,S R, PY - 2000/10/12/pubmed PY - 2001/2/28/medline PY - 2000/10/12/entrez SP - 243 EP - 9 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 73 IS - 1-2 N2 - The behavior of microorganisms towards the antibiotic action of propolis has been widely investigated. Since reports dealing with seasonal effect on propolis activity are not available, this assay was carried out aiming to observe the in vitro antimicrobial activity of propolis, collected during the four seasons, on bacterial strains isolated from human infections. Dilution of ethanolic extract of propolis (EEP) in agar was the method performed, with serial concentrations ranging from 0.4 to 14.0% (% v/v). The behavior of some bacteria was analysed according to the incubation period in medium plus propolis, and the survival curve was plotted. It was verified that the growth of Gram-positive bacteria is inhibited by low propolis concentrations (0.4%) whereas Gram-negative bacteria were less susceptible to this substance, the minimal inhibitory concentration ranging from 4.5 to 8.0%. There was no significant difference with regards to the seasonal effect on the survival curve of Staphylococcus aureus and Escherichia coli; after incubation with propolis, there was an efficient antimicrobial action, mainly towards Gram-positive bacteria. SN - 0378-8741 UR - https://www.unboundmedicine.com/medline/citation/11025162/Seasonal_effect_on_Brazilian_propolis_antibacterial_activity_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0378-8741(00)00320-2 DB - PRIME DP - Unbound Medicine ER -