Cephalosporinase testing agent

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/34 (2006.01) C12Q 1/04 (2006.01)

Patent

CA 2088047

A cephalosporinase testing agent comprising a cephalosporin antibiotic, a penicillinase inhibitor in an amount of 20% by weight or less based on the weight of the cephalosporin antibiotic, and a pH indicator which may be bromcresol purple is provided. A cephalosporinase producing bacteria can be judged by smearing a sample containing bacteria to be tested on the testing agent and observing the color tone change. According to this agent, cephalosporinase-active penicillinase producing bacteria are judged cephalosporinase-negative owing to the action of the penicillinase inhibitor, which may be clavulanic acid. Therefore, since only cephalosporinase producing bacteria are judged cephalosporinase-positive, this agent enables error free judgment.

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