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Related Concept Videos

Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
Phase I Oxidative Reactions: Overview01:19

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Phase I biotransformation, or functionalization, is a crucial chemical process that converts drugs and other xenobiotics into more water-soluble forms, facilitating expulsion from the body. It involves oxidative, reductive, and hydrolytic reactions that add or unveil polar functional groups on lipophilic substrates. Key players in phase I reactions are the mixed-function oxidases. Situated in liver cell microsomes, these enzymes predominantly carry out drug metabolism. They require molecular...
Oxidation and Reduction of Organic Molecules01:19

Oxidation and Reduction of Organic Molecules

Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
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Pyruvate Oxidation01:15

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Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

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Related Experiment Video

Updated: May 11, 2026

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
12:08

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Published on: March 18, 2012

Flavoprotein oxidases: classification and applications.

Willem P Dijkman1, Gonzalo de Gonzalo, Andrea Mattevi

  • 1Molecular Enzymology Group, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.

Applied Microbiology and Biotechnology
|May 4, 2013
PubMed
Summary
This summary is machine-generated.

Oxidative flavoenzymes, using flavin cofactors, offer significant biotechnological potential for biocatalysis and biosensors. Ongoing genome sequencing advances are rapidly expanding the discovery of these valuable enzymes.

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Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry
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Simultaneous Measurement of Superoxide/Hydrogen Peroxide and NADH Production by Flavin-containing Mitochondrial Dehydrogenases
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Simultaneous Measurement of Superoxide/Hydrogen Peroxide and NADH Production by Flavin-containing Mitochondrial Dehydrogenases

Published on: February 24, 2018

Area of Science:

  • Biochemistry
  • Biotechnology
  • Enzymology

Background:

  • Oxidases utilizing flavin cofactors are a significant class of oxidative flavoenzymes.
  • These enzymes possess considerable biotechnological interest and diverse applications.

Purpose of the Study:

  • To review recent progress in the discovery and biochemical understanding of flavoprotein oxidases.
  • To discuss the potential of these enzymes in current biotechnological applications.

Main Methods:

  • Literature review of recent advancements in flavoprotein oxidase research.
  • Structure-based classification of known flavoprotein oxidases.

Main Results:

  • A growing number of novel oxidases are being discovered due to advances in genome sequencing.
  • Flavoprotein oxidases demonstrate potential in biocatalysis for pharmaceuticals and in biosensor development.

Conclusions:

  • Flavoprotein oxidases represent a promising area for biotechnological innovation.
  • Further research into flavoprotein oxidases will likely yield new biocatalytic tools and biosensor components.