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  • Title: Effect of Coffea canephora aqueous extract on microbial counts in ex vivo oral biofilms: a case study.
    Author: Antonio AG, Iorio NL, Farah A, Netto dos Santos KR, Maia LC.
    Journal: Planta Med; 2012 May; 78(8):755-60. PubMed ID: 22532021.
    Abstract:
    In the present study, the ex vivo antimicrobial effect of brewed coffee was tested on oral biofilms. For this, unsweetened and sweetened (10 % sucrose) brewed light-roasted Coffea canephora at 20 % was used in biofilms formed by non-stimulated saliva from three volunteers. After 30 min contact with unsweetened and sweetened brews, the average microorganism count in the biofilms reduced by 15.2 % and 12.4 %, respectively, with no statistical difference among them. We also observed a drop of microorganisms in the biofilms after treatment with sucrose solution at 5 % compared to control (saline) and to sucrose at 1 % and 3 %. In conclusion, Coffea canephora extract reduces the microbial count in oral biofilm, and our data suggest that sucrose concentration in coffee brew can influence its antimicrobial property against the referred biofilm.
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