| abstract |
(57) [Problem] To provide a highly safe urease inhibitor, a medicament containing the urease inhibitor as an active ingredient, a food additive and a food composition containing the urease inhibitor, Provided is a method capable of measuring urease activity even in the presence of a compound having a phenol structure. A urease inhibitor containing proanthocyanidin or a salt thereof. A medicament comprising the urease inhibitor as an active ingredient. Food additives and food compositions containing the urease inhibitor. A method for measuring urease activity, comprising hydrolyzing urea with urease to produce ammonia, and then reacting the produced ammonia with dansyl chloride to quantify dansylamide produced. |