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Oolong (UK: / ˈ uː l ɒ ŋ /, US: /-l ɔː ŋ /; simplified Chinese: 乌龙茶; traditional Chinese: 烏龍茶; pinyin: wūlóngchá; Pe̍h-ōe-jī: o͘-liông tê, "black dragon" tea) is a traditional semi-oxidized Chinese tea (Camellia sinensis) produced through a process that includes withering the leaves under strong sun and allowing some oxidation to occur before curling and twisting. [1]
In this regard, most Darjeeling teas with light oxidation levels are more similar to green or oolong teas. [36] In Chinese, semi-oxidized teas are collectively grouped as blue tea (青茶, literally: blue-green tea; also, celadon tea, for the pottery), while the term oolong is used specifically as a name for certain semi-oxidized teas. [37]
Teaghrelins are acylated flavonoid tetraglycosides found in semi-oxidized oolong teas (Camellia sinensis), such as Chin-shin oolong tea [1] and Shy‐jih‐chuen oolong tea. [2] Teaghrelins are ghrelin receptor agonists in vitro. [1] In an animal model, teaghrelins induce hunger and accelerate gastric emptying. [1]
Semi-killed steel is commonly used for structural steel with a carbon content between 0.15 and 0.25% carbon, because it is rolled, which closes the porosity. It is also used for drawing applications. [4] [8] [needs update] Characteristics of SEMI KILLED steels. Structural steels containing 0.15 to 0.25% carbon are generally semi-killed.
Dehydroascorbic acid (DHA) is an oxidized form of ascorbic acid (vitamin C). It is actively imported into the endoplasmic reticulum of cells via glucose transporters. [1] It is trapped therein by reduction back to ascorbic acid by glutathione and other thiols. [2]
[3] [4] [5] It can be viewed as an intramolecular redox reaction, as one carbon center is oxidized while the other is reduced. Scheme 1. Benzilic acid rearrangement. The reaction has been shown to work in aromatic, semi-aromatic, aliphatic, and heterocyclic substrates.
This double-redox center has three accessible oxidation levels. [4] In the catalytic cycle of galactose oxidase, the enzyme shuttles between the fully oxidized form and the fully reduced form. [4] The semi-oxidized form is the inactive form. Redox scheme of GAOX and three oxidation states
Deoxidization is a method used in metallurgy to remove the rest of oxygen content from previously reduced iron ore during steel manufacturing. In contrast, antioxidants are used for stabilization, such as in the storage of food.