title: Effect of seaweed extracts on Streptococcus sobrinus adsorption to saliva-coated hydroxyapatite.
abstract: The inhibitory effect of the extracts of seaweeds on the adsorption of Streptococcus sobrinus B13 to the tooth surface was investigated in vitro. Using saliva-coated hydroxyapatite beads (S-HA) as experimental salivary pellicle, extracts from Gloiopeltis furcata and Gigartina teedii (Rhodopheceae) strongly inhibited the adsorption of S. sobrinus B13 to S-HA. The G. furcata extract, which strongly inhibited the adsorption of S. sobrinus B13 to S-HA, was a high molecular weight sulfated polysaccharide. The result of I.R. analysis indicated that the active component in this extract of G. furcata was funoran.
authors.forename: Y
authors.initials: Y
authors.lastname: Saeki
mesh_terms: D001422:Bacterial Adhesion / Q000187:drug effects*; D044622:Dental Pellicle; D017886:Durapatite; D006801:Humans; D010936:Plant Extracts / Q000494:pharmacology; D012463:Saliva; D012624:Seaweed / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D016986:Streptococcus sobrinus / Q000502:physiology*
chemical_list: D010936:Plant Extracts; D017886:Durapatite