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 (kăt′l-ās′, -āz′)
An enzyme found in living cells that catalyzes the decomposition of hydrogen peroxide, a potentially harmful oxidizing agent, into water and oxygen.

cat′a·lat′ic (kăt′l-ăt′ĭk) adj.


(Biochemistry) an enzyme that catalyses the decomposition of hydrogen peroxide


(ˈkæt lˌeɪs, -ˌeɪz)

an enzyme that decomposes hydrogen peroxide into oxygen and water.
[1900–05; catal (ysis) + -ase]
cat`a•lat′ic (-ˈæt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.catalase - enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into oxygen and water
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
References in periodicals archive ?
In order to assaying of protein content and catalase, Peroxidase and superoxid dismutase activities, fruits tissue of each treated and control samples (0.
The Market Research Report on Global and Chinese Catalase Enzyme Industry, 2009-2019 is a professional and in-depth market survey on Global and Chinese Catalase Enzyme industry.
Subjects who received CoQ10 experienced a reduction in interleukin-6 and TNF-alpha, indicating a decline in inflammation, as well as elevations in SOD, catalase, and glutathione peroxidase that resulted in a significant increase in comparison with the placebo group.
The nanocomposite of titanium nitride and ionic liquid that was electrochemically stabilized on the surface of glass carbon electrode was used as an appropriate bed for the stabilization of catalase enzyme.
Catalase is an aerobic enzyme that is nearly ubiquitous among organisms (Li 2007).
As the substance of interest-say, insulin-binds to antibodies bound to the glass slide, catalase is made active and splits nearby hydrogen peroxide into water and oxygen gas.
Adding sodium pyruvate and catalase significantly increased the TSA counts and extended the culturable period to 18 days by degrading the hydrogen peroxide stress in the medium.
On the contrary, overexpression of SOD1, SOD2 and CTT1 (cytosolic catalase T) at various combinations increased S.
Decreased activity of iron-containing enzyme catalase in human iron deficiency anemia.
The present study was planned with the view of the possible oxidative stress involved during transition period; it was decided to estimate the levels of MDA and SOD, GSHPx, catalase and GSH as an index of oxidative stress and antioxidative status respectively, and to see whether any difference existed in these parameters during advanced pregnancy and early lactation.
Some of the antioxidant enzymes that are found to provide protection against the ROS are superoxide dismutase, catalase, peroxidase, glutathione peroxidase, and ascorbate oxidase (Rani et al.