Abstract Title:

Effects of Brazilian green propolis extract on planktonic cells and biofilms of multidrug-resistant strains ofand.

Abstract Source:

Biofouling. 2020 Aug ;36(7):834-845. Epub 2020 Sep 21. PMID: 32954805

Abstract Author(s):

Pâmela Beatriz do Rosário Estevam Dos Santos, Damara da Silva Ávila, Lucas de Paula Ramos, Amanda Romagnoli Yu, Carlos Eduardo da Rocha Santos, Andresa Aparecida Berretta, Samira Esteves Afonso Camargo, Jonatas Rafael de Oliveira, Luciane Dias de Oliveira

Article Affiliation:

Pâmela Beatriz do Rosário Estevam Dos Santos


Propolis could represent an alternative therapeutic agent for targeting multidrug-resistant bacteria due to its antimicrobial potential. The effect of Brazilian green propolis (BGP) aqueous extract (AqExt) was evaluated on eight multidrug-resistant clinical strains ofand, as well as on one reference strain for each bacterial species. The minimum bactericidal concentration (MBC) was determined and optimal concentrations were further evaluated in comparison with 0.12% chlorhexidine. The natural extract was chemically characterized by HPLC-DAD analysis. The MBC values ranged between 3.12 and 27.5 mg ml. Analysis of bacterial metabolic activity after treatment for 5 min with BGP-AqExt revealed a strong antimicrobial potential, similar to chlorhexidine. The extract comprised several active compounds including quercetin, gallic acid, caffeic and-coumaric acid, drupani, galangin, and artepillin C. Altogether, the findings suggest that BGP-AqExt is fast and effective against multidrug-resistant strains ofandin planktonic cultures and biofilms.

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