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KMID : 1024620220420061020
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Food Science of Animal Resources
2022 Volume.42 No. 6 p.1020 ~ p.1030
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Effect of Bacteriocin-Like Inhibitory Substance (BLIS) from Enterococcus faecium DB1 on Cariogenic Streptococcus mutans Biofilm Formation
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Kim Ni-Na
Kim Bong-Sun
Lee Han-Bin
An Sung-Hyun
Kim Dong-Han
Kang Seok-Seong
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Abstract
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The aim of the study was to investigate the effect of bacteriocin-like inhibitory substance (BLIS) from Enterococcus faecium DB1 on cariogenic Streptococcus mutans biofilm. Crystal violet staining, fluorescence, and scanning electron microscopy analyses demonstrated that the BLIS from Enterococcus faecium DB1 (DB1 BLIS) inhibited S. mutans biofilm. When DB1 BLIS was co-incubated with S. mutans, biofilm formation by S. mutans was significantly reduced (p<0.05). DB1 BLIS also destroyed the preformed biofilm of S. mutans. In addition, DB1 BLIS decreased the viability of S. mutans biofilm cells during the development of biofilm formation and in the preformed biofilm. DB1 BLIS significantly decreased the growth of S. mutans planktonic cells. Furthermore, S. mutans biofilm on the surface of saliva-coated hydroxyapatite discs was reduced by DB1 BLIS. Taken together, DB1 BLIS might be useful as a preventive and therapeutic agent against dental caries caused by S. mutans.
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KEYWORD
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Enterococcus faecium, bacteriocin-like inhibitory substance, Streptococcus mutans, biofilm, dental caries
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