Ascorbate peroxidases are enzymes that detoxify peroxides such as hydrogen peroxide using ascorbate as a substrate. The reaction they catalyse is the transfer of electrons from ascorbate to a peroxide, producing dehydroascorbate and water as products. Peroxide has three distinct meanings: Colloquial meaning In common usage, peroxide is an aqueous solution of hydrogen peroxide (HOOH or H2O2) sold for use as a disinfectant or mild bleach. ... Hydrogen peroxide (H2O2) is a clear liquid, slightly more viscous than water. ... Ascorbic acid is an organic acid with antioxidant properties. ...
Ascorbate + Hydrogen peroxide → Dehydroascorbate + Water
C6H8O6 + H2O2 → C6H6O6 + 2 H2O
These enzymes are commonly hemoproteins and the haem cofactor is the site of the oxidation-reduction reaction shown above. A hemoprotein, or heme protein, is a protein containing a heme prosthetic group, either covalently or noncovalently bound to the protein itself. ...
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