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Thus, organic peroxides are useful as initiators for some types of polymerization, such as the acrylic, unsaturated polyester, and vinyl ester resins used in glass-reinforced plastics. MEKP and benzoyl peroxide are commonly used for this purpose. However, the same property also means that organic peroxides can explosively combust.
Compound I then oxidizes an organic substrate to give a substrate radical [2] and Compound II, which can then oxidize a second substrate molecule. Haem peroxidases include two superfamilies: one found in bacteria, fungi, and plants, and the second found in animals. The first one can be viewed as consisting of 3 major classes: [3]
There is evidence now that those reactive oxygen species including peroxisomal H 2 O 2 are also important signalling molecules in plants and animals and contribute to healthy ageing and age-related disorders in humans. [21] The peroxisome of plant cells is polarised when fighting fungal penetration.
Glutathione peroxidases use glutathione as an electron donor and are active with both hydrogen peroxide and organic hydroperoxide substrates. Gpx1, Gpx2, Gpx3, and Gpx4 have been shown to be selenium-containing enzymes, whereas Gpx6 is a selenoprotein in humans with cysteine-containing homologues in rodents.
Ascaridole was the first, and for a long time only, discovered naturally occurring organic peroxide.It was isolated from Chenopodium oil and named by Hüthig in 1908. He found that when heated to between 130° and 150 °C "there occurs, with sudden boiling in which the temperature momentarily rises to about 250°, a decomposition of an explosive character, occasionally accompanied by ignition.
Remember when your best friend growing up scraped her knee and her mom poured a little bit of hydrogen peroxide over the cut to “clean it out?” While this used to be the go-to hydrogen ...
Organic peroxide explosives (9 P) Organic peroxy acids (8 P) Pages in category "Organic peroxides" The following 45 pages are in this category, out of 45 total.
Heme peroxidases catalyse the H 2 O 2-dependent oxidation of a wide range of different, usually organic, substrates in biology. This enzyme belongs to the family of oxidoreductases, specifically those acting on a peroxide as acceptor (peroxidases). The systematic name of this enzyme class is L-ascorbate:hydrogen-peroxide oxidoreductase.