Lexic.us

Definition of Peroxidase

1. Noun. Any of a group of enzymes (occurring especially in plant cells) that catalyze the oxidation of a compound by a peroxide.

Definition of Peroxidase

1. Noun. Any of a class of enzymes that act on substrates such as hydrogen peroxide and organic hydroperoxides such as lipid peroxides. ¹

¹ Source: wiktionary.com

Definition of Peroxidase

1. [n -S]

Medical Definition of Peroxidase

1. A haem enzyme that catalyses reduction of hydrogen peroxide by a substrate that loses two hydrogen atoms. Within cells, may be localised in peroxisomes. Coloured reaction products allow detection of the enzyme with high sensitivity, so peroxidase coupled antibodies are widely used in microscopy and ELISA. Lactoperoxidase is used in the catalytic surface labelling of cells by radioactive iodine. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Peroxidase

Literary usage of Peroxidase

Below you will find example usage of this term as found in modern and/or classical literature:

1. An Introduction to the Chemistry of Plant Products by Paul Haas, Thomas George Hill (1917)
"peroxidase. peroxidases which split oxygen from hydrogen peroxide, organic peroxides, potassium permanganate, etc., are often associated with other oxidases ..."

2. Science by American Association for the Advancement of Science (1883)
"Chronic granulo- matous disease leukocytes stain normally for peroxidase; however, H2O2 formation following phagocytosis is decreased (18). ..."

3. Torreya by Torrey Botanical Club (1911)
"From all the experimental work of the different investigators it seems probable that peroxidase is an enzyme rather than a simple catalyzer. ..."

4. Chemical Abstracts by American Chemical Society (1916)
"peroxidase reactions in buds and mature flowers differ neither in distribution nor in intensity. Withered flowers gave erratic results. ..."

5. Report on Colloid Chemistry and Its General and Industrial Applications by Great Britain (1919)
"Such a milk would not respond to the guaiacol test, unless a peroxidase were ... The importance of the " peroxidase reaction " in the colloid chemistry of ..."

6. Practical Physiological Chemistry by Sydney William Cole (1920)
"The peroxidase deprives the peroxide of an atom of oxygen and transfers it to the ... 2 RO + O2 = 2 R Atmospheric Peroxide. Oxygen. ^Q (ii.) R + peroxidase ..."

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