Catalase 3% 5/Pk, Pack Of 5

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A catalase test is useful for the identification of many different bacteria. Since streptococci lack the enzyme to catalyze hydrogen peroxide, and all staphylococci possess it, 3% catalase is used to separate the species. Also, listeria monocytogenes, which is catalase positive can be differentiated from beta-hemolytic streptococci. Most neisseria species are catalase positive. 15% Catalase is used for anaerobes, with most anaerobes being catalase negative with the exceptions of several species in the b. Fragilis group and a few of the anaerobic cocci. 30% Catalase is used with acid fast bacilli.