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The key role of catechol oxidase in enzymatic browning makes it a common target for inhibition. While a number of inhibitory strategies exist such as high temperature treatments(70-90 °C) to eliminate catechol oxidase catalytic activity, [6] a popular strategy is decreasing the pH with citric acid. Catechol oxidase is more catalytically active ...
Thus, the two substrates of this enzyme are catechol and O 2, whereas its two products are [[dibenzo[1,4]dioxin-2,3-dione]] and H 2 O. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is catechol:oxygen oxidoreductase ...
There are three structural isomers: 1,2-dihydroxybenzene (the ortho isomer) is commonly known as catechol, 1,3-dihydroxybenzene (the meta isomer) is commonly known as resorcinol, and 1,4-dihydroxybenzene (the para isomer) is commonly known as hydroquinone. [1]
Catechol has since been shown to occur in free form naturally in kino and in beechwood tar. Its sulfonic acid has been detected in the urine of horses and humans. [9] Catechol is produced industrially by the hydroxylation of phenol using hydrogen peroxide. [2] C 6 H 5 OH + H 2 O 2 → C 6 H 4 (OH) 2 + H 2 O
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help ... Catechol oxidase; Ceruloplasmin; Cytochrome c oxidase; D.
Download as PDF; Printable version; In other projects ... , catechol 2,3-oxygenase, catechol oxygenase, metapyrocatechase, pyrocatechol 2,3-dioxygenase) is an enzyme ...
IUPAC Nomenclature ensures that each compound (and its various isomers) have only one formally accepted name known as the systematic IUPAC name. However, some compounds may have alternative names that are also accepted, known as the preferred IUPAC name which is generally taken from the common name of that compound.
Hemocyanin is homologous to the phenol oxidases (e.g. tyrosinase) since both proteins have histidine residues, called "type 3" copper-binding coordination centers, as do the enzymes tyrosinase and catechol oxidase. [19] In both cases inactive precursors to the enzymes (also called zymogens or proenzymes) must be activated first. This is done by ...