autooxidation


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au·to·ox·i·da·tion

(aw'tō-oks'i-dā'shŭn),
The direct combination of a substance with molecular oxygen at ordinary temperatures.
Synonym(s): autoxidation

au·to·ox·i·da·tion

(aw'tō-oks-i-dā'shŭn)
The direct combination of a substance with molecular oxygen at ordinary temperatures.
Synonym(s): autoxidation.
References in periodicals archive ?
It is very likely that the components of cranberry extract undergo oxidation reducing the oxidized molecules of phosphatidylcholine liposomes in an autooxidation process.
The assay is based on the ability of SOD to exhibit the autooxidation of pyrogallol in presence of EDTA.
Gorkum, RV, Bouwman, E, Reedijk, J,"Fact Autooxidation of Ethyl Linoleate Catalysed by Mn[(AcAc).
It is not possible to predict the degree of autooxidation that might have occurred in the NPHSII samples over the storage period, and it is possible that total antioxidant status may decay at a variable rate, depending on the initial antioxidant content and availability of prooxidant factors.
Indeed, it has been suggested that hyperhomocysteinemia may promote the production of hydroxyl radicals, known to be lipid peroxidation initiators, via homocysteine autooxidation and thiolactone formation (24, 26, 27).
The hydrogen abstraction or autooxidation mechanism does not require any catalyst; however, cobalt ions do catalyze the degradation of hydroperoxides into alkyl, ether, and peroxide radicals, which accelerate the drying process considerably.
Before a diagnosis of gestational diabetes is made, usually during the second trimester, and before initiation of insulin therapy, oxidative stress and glucose autooxidation may increase hydrogen peroxide generation and diminish catalase synthesis (5-12).
Before the discovery of tyrosine hydroxylase as the rate-limiting step in biosynthesis of catecholamines, researchers considered the possibility that endogenous catecholamines might arise from autooxidation of tyrosine.
The determination of superoxide dismutase (SOD) activity was based on the inhibition of pyrogallol autooxidation (Misra and Fridovich 1972).
Total SOD activity was assayed as the inhibition of the autooxidation of pyrogallol in alkaline solution monitored at 420 nm (20), with 1 U of activity giving 50% inhibition at 10 min.