Glyoxal                               General, Process, Functions, Company Profiles, Consultants, Patent, Material Safety Data Sheet, Report                                              Primary Information Services                                                        Home. Ordering Information. Contact

• Glyoxal is an organic compound with the formula OCHCHO. It will be an yellow-coloured liquid and also smallest dialdehyde.
• Glyoxal, difunctional low mole weight aldehyde, is a highly reactive intermediate used for the preparation of copolymers, dyes, pharmaceuticals, pesticides, corrosion inhibitors and photographic chemicals.
• The preparation of anhydrous glyoxal entails heating solid glyoxal hydrate(s) with phosphorus pentoxide.
• Glyoxal may be formed in the degradation of glucose by retroaldol condensation reactions activated by deprotonation of the 2- or 3-hydroxy groups.
• Commercial glyoxal is prepared either by the gas phase oxidation of ethylene glycol in the presence of a silver or copper catalyst or by the liquid phase oxidation of acetaldehyde with nitric acid.
• Glyoxal oxidase is a copper metalloenzyme produced by the wood-rot fungus Phanerochaete chrysosporium as an essential component of its extracellular lignin degradation pathways.
• Glyoxal oxidase (GLOX), an extracellular H2O2-generating enzyme produced by Phanerochaete chrysosporium, is thought to be an important partner in the ligninolysis catalyzed by the fungal lignin (Lip) and manganese peroxidases (MnP).
• In the field of cellulose ether chemistry the treatment with glyoxal is a common way to confer a delayed solubility to cellulose ethers. The treatment includes a reaction of glyoxal with the hydroxyl groups of the cellulose ether polymer to establish hemi-acetal crosslinks which provide a retardation effect in water.
• Glyoxal is endogenously produced during normal cellular metabolism by a multitude of enzymeindependent pathways.
• Glyoxal is also a product of the metabolism and microsomal oxidation of other compounds, such as glycolaldehyde, ethylene glycol, and β- hydroxy-substituted N-nitrosamines
• Paper coatings and textiles use large amounts of glyoxal as a crosslinker for starch-based formulations and as a starting material with ureas for wrinkle-resistant chemical treatments.
• It is used as a solubilizer and cross-linking agent in polymer chemistry.
• The acute toxicity of glyoxal ranged from low to harmful in animal experiments performed with different species, depending on the active ingredient concentration of the tested product.
• Glyoxal, which attacks amino groups of proteins, nucleotides, and lipids, is considered an important intermediate in the formation of advanced glycation endproducts (AGEs).

• Glyoxal
• Glyoxal Product Identification
• Glyoxal Agarose Beads
• Glyoxal Atmospheric Chemistry

Process

• Formation of glyoxal, methylglyoxal and 3-deoxyglucosone in the glycation of proteins by glucose
• Identification of Catalytic Residues in Glyoxal Oxidase by Targeted Mutagenesis
• Interaction of peroxidase systems with recombinant glyoxal oxidase from Phanerochaete chrysosporium
• Measurement of glyoxal using an incoherent broadband cavity enhanced absorption spectrometer
• Method for the determination of the glyoxal content in cellulose ethers
• Glyoxal Oxidase from Phanerochaete chrysosporium Is a New Radical-Copper Oxidase
• Uptake Rate Measurements of Methanesulfonic Acid and Glyoxal by Aqueous Droplets

Functions

• High-resolution absorption cross-section of glyoxal in the UV–vis and IR spectral ranges
• Glyoxal, a major product of DNA oxidation, induces mutations at G:C sites on a shuttle vector plasmid replicated in mammalian cells
• A Study on the Metabolism of Glyoxal in Vitro
• Proteasome Inhibition in Glyoxal-treated Fibroblasts and Resistance of Glycated Glucose-6-phosphate Dehydrogenase to 20 S Proteasome Degradation in Vitro

Patent

• Vapor phase oxidation process for making glyoxal
• Purification of aqueous glyoxal solutions
• Glyoxal Modified aqueous Starch dispersion and Method
• Isotope separation by selective photodissociation of Glyoxal
• New continuous industrial manufacturing process for an aqueous solution of Glyoxalic acid
• Preparation of Diacetals of Glyoxal
• Process for Scavenging hydrogen sulfide using Glyoxal

Consultants and Project

• Expert Curriculum Vitae
• Glyoxal Experts
• Melt reaction of zein with glyoxal to improve tensile strength and reduce solubility

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