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KMID : 0613820090190070956
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Journal of Life Science
2009 Volume.19 No. 7 p.956 ~ p.962
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Antimicrobial Activity of Test Dentifrice Product Containing Grapefruit Seed Extract and Processed Sulfur Solution against Oral Pathogens
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Lee Bo-Bae
Ha Yu-Mi
Shin Su-Hwa
Je Kyoung-Mo
Kim Soon-Rae
Choi Jae-Suk
Choi In-Soon
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Abstract
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The aim of this study was to assess the effects of dentifrice-contatning grapefruit seed extract (GSE) and processed sulfur solution (PSS) on antimicrobial effects against oral pathogens. We first evaluated the antimicrobial effects of GSE and PSS against oral microbes: Streptococcus mutans (Sm), Prevotella intermedia (Pi), Porphyromonas gingivalis (Pg) and Candida albicans (Ca). When antimicrobial activity against Sm, Pi, Pg and Ca was tested, at 40 ㎕/disk, the inhibition zones of GSE were 11.0, 9.5, 8.0 and 9.0 ㎜, respectively. With the same method, the inhibition zones of PSS were 2.0, 3.5, 0.0 and 1.5 ㎜, respectively. In the micro broth dilution method, the MIC values of GSE against Sm, Pi, Pg and Ca were 0.24, 0.06, 0.10 and 15.63 ㎕/㎖, respectively. The MIC values of PSS were 0.12, 3.91, ＞125 and 7.81 ㎕/㎖, respectively. When pH, refractive index, viscosity and color value of dentifrice-containing GSE and PSS were measured, there were no significant changes in these physical properties compared to the control samples. Antimicrobial activities of dentifrice products containing 0.5% GSE and 0.5% PSS against oral pathogens were 7.3, 4.3, 2.2 and 1.5 mm, respectively. According to these results, we conclude that there may be a role for GSE and PSS in the development of new oral supplies.
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KEYWORD
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Antimicrobial activity, grapefruit seed extract, processed sulfur solution, oral pathogens, oral ailments
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