| 摘要 |
PURPOSE:To obtain a growth inhibitor for cariogenic bacteria, containing a specific highly unsaturated fatty acid, e.g. linolenic acid, etc., extremely effective in inhibiting growth of bacterium Streptococcus mutans which is a cariogenic bacterium and also effective in inhibiting formation of glucan causing bacterial plaque. CONSTITUTION:A growth inhibitor for cariogenic bacteria, obtained by blending at least one highly unsaturated fatty acid selected from linolenic acid, gamma-linolenic acid, arachidonic acid, eicosapentaenoic acid and docosahexaenoic acid as an active ingredient in an amount of 0.0001-0.01wt.%, preferably 0.0005-0.005wt.% in a composition for the oral cavity, capable of exhibiting excellent antibacterial activity against intraoral bacteria represented by Streptococcus mutans highly participating in formation of carious teeth (dental caries) and inhibiting formation of dextran (glucan) involved by intraoral microorganisms and safe for human bodies. |
