Cell-associated glucosyltransferase of S. mutans serotypes c, e or f producing dental caries was isolated and purified and its characteristics as an enzyme were revealed. Furthermore, an antibody against said enzyme was prepared from eggs of the hens immunized with said enzyme. Since this antibody effectively prevents adherence of the aforementioned S. mutans to tooth surfaces, it is useful as an effective component for a dental caries prophylactic composition.

La glucosiltransferasi associata alle cellule dei sierotipi c, e o f di S. mutans producente la carie dentale è stata isolata e purificato stata e le relative caratteristiche mentre un enzima è rivelato stato. Ancora, un anticorpo contro l'enzima detto è preparato stato dalle uova delle galline immunizzate con l'enzima detto. Poiché questo anticorpo impedisce efficacemente l'aderenza di S. mutans sopraccennato alle superfici del dente, è utile come componente efficace per una composizione profilattica nella carie dentale.

 
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