Dextranglucosidase Activity in Supragingival Plaque

Abstract
Enzyme activity was present in pooled dental plague that hydrolyzed dextran added to glucose. Hydrolysis of dextran occurred in the pH range of 5.15 to 7.1. Glucose released endogenously from plague alone was equivalent in amount to that released by amyloglucosidase; therefore, it was from starchy sources.