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  • Title: In vitro effect of coffee on oral malodor-related parameters.
    Author: Gov Y, Sterer N, Rosenberg M.
    Journal: J Breath Res; 2010 Jun; 4(2):026004. PubMed ID: 21383472.
    Abstract:
    In the present investigation we examined the effect of three brands of coffee on microbial volatile sulfur compound (VSC) production using a decarboxylase incubation assay. Stimulated whole saliva was added to decarboxylase medium supplemented with 0.005% hemin. Incubation was carried out anaerobically for 72 h in the presence of powdered coffee at concentrations ranging from 0.5 to 2.0% (w/v), as compared with appropriate controls. VSC levels were determined using OralChroma™ and Halimeter™ and malodor was scored by an experienced odor judge. Experimental biofilm was grown with or without coffee and examined for VSC-producing bacteria using confocal laser scanning microscopy. Results showed that VSC and malodor levels were decreased by 85% in the presence of 2% coffee. The data suggest that coffee components reduce malodor production, VSC levels and experimental biofilm VSC-producing bacteria in vitro.
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