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Horseradish peroxidase is also commonly used in techniques such as ELISA and Immunohistochemistry due to its monomeric nature and the ease with which it produces coloured products. Peroxidase, a heme-containing oxidoreductase, is a commercially important enzyme which catalyses the reductive cleavage of hydrogen peroxide by an electron donor.
3,3′,5,5′-Tetramethylbenzidine or TMB is a chromogenic substrate used in staining procedures in immunohistochemistry as well as being a visualising reagent used in enzyme-linked immunosorbent assays . [1] TMB is a white solid that forms a pale blue-green liquid in solution with ethyl acetate.
Horseradish peroxidase is also capable of oxidizing these substrates, but its heme is not covalently bound and becomes damaged during turnover. [ 4 ] A specific vanadium bromoperoxidase in marine organisms (fungi, bacteria, microalgae, perhaps other eukaryotes) uses vanadate and hydrogen peroxide to brominate electrophilic organics.
Peroxidase can be used for treatment of industrial waste waters. For example, phenols, which are important pollutants, can be removed by enzyme-catalyzed polymerization using horseradish peroxidase. Thus phenols are oxidized to phenoxy radicals, which participate in reactions where polymers and oligomers are produced that are less toxic than ...
Horseradish sauce made from grated horseradish root and vinegar is a common condiment in the United Kingdom, in Denmark (with sugar added) and in Poland. [30] In the UK, it is usually served with roast beef, often as part of a traditional Sunday roast , but can be used in a number of other dishes, including sandwiches or salads.
This enzyme complex then catalyzes the conversion of the enhanced chemiluminescent substrate into a sensitized reagent in the vicinity of the molecule of interest, which on further oxidation by hydrogen peroxide, produces a triplet (excited) carbonyl, which emits light when it decays to the singlet carbonyl. Enhanced chemiluminescence allows ...
A common use for it is in the enzyme-linked immunosorbent assay (ELISA) to detect the binding of molecules to each other. It is commonly used as a substrate with hydrogen peroxide for a peroxidase enzyme (such as horseradish peroxidase) or alone with blue multicopper oxidase enzymes (such as laccase or bilirubin oxidase).
In enzymology, a fatty-acid peroxidase (EC 1.11.1.3) is an enzyme that catalyzes the chemical reaction palmitate + 2 H 2 O 2 ⇌ {\displaystyle \rightleftharpoons } pentadecanal + CO 2 + 3 H 2 O Thus, the two substrates of this enzyme are palmitate and H 2 O 2 , whereas its 3 products are pentadecanal , CO 2 , and H 2 O .