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catalase
(redirected from Catalase test)

   Also found in: Encyclopedia, Wikipedia 0.04 sec.
catalase /cat·a·lase/ (kat´ah-lās) a hemoprotein enzyme that catalyzes the decomposition of hydrogen peroxide to water and oxygen, protecting cells. It is found in almost all animal cells except certain anaerobic bacteria; genetic deficiency of the enzyme results in acatalasia.catalat´ic
cat·a·lase (ktl-s, -z)
n.
An enzyme found in most living cells that catalyzes the decomposition of hydrogen peroxide to water and oxygen.

catalase
[kat′əlās]
Etymology: Gk, katalein, to dissolve
a heme enzyme, found in almost all biologic cells, that catalyzes the decomposition of hydrogen peroxide to water and oxygen.

catalase (kaˑ·t·las),
n an enzyme that breaks down hydrogen peroxide into water and oxygen.

catalase
a heme-containing enzyme that specifically catalyzes the decomposition of hydrogen peroxide and is found in almost all cells except certain anaerobic bacteria. The reaction can be used as a test in the identification of bacteria.


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After incubation at 37[degrees]C for 24 h, the colonies were tentatively identified according to morphologic features, pigment production, Gram stain results, catalase test results, type of hemolysis, and characteristic growth on BP agar.
Although other bacteria were more difficult to identify, some other methods used to aid in classifying each bacterial sample were performed, including the oxidase test, catalase test, and stab cultures.
They showed positive results for catalase test and a variable result for ornithine decarboxylation.
 
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