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  • Title: Inhibitory effect of a high-molecular-weight constituent of cranberry on adhesion of oral bacteria.
    Author: Weiss EL, Lev-Dor R, Sharon N, Ofek I.
    Journal: Crit Rev Food Sci Nutr; 2002; 42(3 Suppl):285-92. PubMed ID: 12058987.
    Abstract:
    A high-molecular-weight nondialysable material (NDM) isolated from cranberry juice at a concentration of 0.6 to 2.5 mg/ml dissociated coaggregates formed by many intergeneric oral bacteria. A lower concentration of NDM was required to inhibit formation of such coaggregates. NDM acted preferentially on pairs of oral bacteria in which one or both members are Gram-negative anaerobes. The high-molecular-weight material from blueberry also inhibited the coaggregation, although its activity was weaker, whereas such materials obtained from other fruits were inactive. Saliva did not interfere with the ability of NDM to inhibit coaggregation. A preliminary clinical trial showed that NDM reduces S. mutans counts in saliva. The antiadhesion activity of cranberry juice has a potential for altering the oral microbial flora resulting in improved oral hygiene.
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