alpha-tocopherol

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α-to·coph·er·ol (α-T),

(tō-kof'ĕr-ol),
One of several forms of vitamin E. A light yellow, viscous, odorless, oily liquid that deteriorates on exposure to light, is obtained from wheat germ oil or by synthesis, biologically exhibits the most vitamin E activity of the α-tocopherols, and is an antioxidant retarding rancidity by interfering with the autoxidation of fats.
Synonym(s): vitamin E (1)

alpha-tocopherol

(ăl′fə-tō-kŏf′ə-rôl′, -rōl′)
n.
An alcohol, C29H50O2, that is one of the components of vitamin E and is present in vegetable oils, nuts, and seeds or produced synthetically. It is the predominant form of vitamin E in the human body and in supplements.

alpha-tocopherol

See vitamin E.

α-to·coph·er·ol

(tŏ-kof'ĕr-ol)
One of several forms of vitamin E. A light yellow, viscous, odorless, oily liquid that deteriorates on exposure to light, is obtained from wheat germ oil or by synthesis; an antioxidant retarding rancidity by interfering with autoxidation of fats.
Synonym(s): vitamin E (1) .

alpha-tocopherol,

tocopherol

an alcohol isolated from wheat germ oil or produced synthetically; it has the properties of vitamin E.

α-tocopherol
vitamin E.
References in periodicals archive ?
EGCG showed remarkably high antioxidant capability similar to a-tocopherol used as standard in the TAC estimation method.
28] The crude extract and a-tocopherol (5-40 mg/mL) were added to 1.
This is where antioxidants like a-tocopherol come into the picture; they intercept the lipid peroxyl radicals.
In addition to the abusive marketing bans, the Petition to the FDA asks that a minimum microgram standard be set to require a-tocopherol replenishment in all US sold cigarettes and to recognize replenished [R] brand cigarettes as a potential modified risk product.
The antioxidant activity of vitamers and, especially of a-tocopherol (aT), is based on the high stability of the a-tocopheroxyl radical, which can bind another radical, resulting in a nonradical product.
Because a-tocopherol molecule as an antioxidant can break the chain, two lipid radicals and two peroxidation chain potential reaction can be inhibited [20].
Feeding lactating ruminants with virgin stoned pomace, with an acidic composition of merit, containing a-tocopherol, retinol and phenol can bring about positive variations in the quality of the milk produced, both with an improvement in the acidic composition of the lipid fraction and with oxidative stability (Chiofalo et al.
These antioxidant systems include enzymes, macromolecules, and small molecules, including ascorbic acid, a-tocopherol, [beta]-carotene, ubiquinol-10, reduced lipoic acid (DHLA), reduced glutathione (GSH), methionine, uric acid, bilirubin, and some amino acids.
Recent work has demonstrated that exogenous treatments of either a-tocopherol or y-rocopherol attenuated EtOH-induced changes in membrane fatty acid composition and EtOH-induced changes in brain morphology.
The results indicate that the Schisandrin B-enriched extract, but not a-tocopherol (vitamin E), can protect against exercise-induced muscle damage through the enhancement of liver glutathione status.
Because a-tocopherol molecule as a chain breaking antioxidant can inhibit two lipid proxils radical and so inhibit chain potential reaction of high oxidation.
The semen of the Karan Fries bulls under study was extended in extender with or without various additives such as Butylated Hydroxy Toluene (BHT), Pentoxifylline (PTX) and a-tocopherol (Vit E) and performance was evaluated at an interval of 0, 24, 48 and 72 h at refrigerated temperature (4-7[degrees]C).