Catalase test

Catalase test determines the presence of the peroxidase enzyme. Hydrogen peroxide is poured on the colonies. If the bacteria produces this enzyme, it reacts with the hydrogen peroxide and oxygen bubbles appear.

Results:
 * positive – Staphylococcus, Corynebacterium, Neisseria, Moraxella
 * negative – Streptococcus, Arcanobacterium

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