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 ?
Al though quantitatively, alpha-tocopherol comprises the bulk of vitamin E found in the epidermis, tocotrienols-applied orally or topically-also deliver to viable skin layers.
In a double-blind study of patients with vascular disease or diabetes, supplementation with 400 IU per day of alpha-tocopherol for seven years resulted in a significant 19% increase in the incidence of heart failure compared with placebo.
in 2008 found that a stable topical preparation of 15% L-ascorbic acid, 1% alpha-tocopherol, and 0.
The relationship between the dietary provision of alpha-tocopherol and the concentration of this vitamin in the semen of chicken: effects on lipid composition and susceptibility to peroxidation.
The scientists formed cyclodextrin inclusion complexes of alpha-tocopherol and quercetin using a coprecipitation technique.
The authors do not recommend vitamin E supplements to increase levels, since the approximately 15mg to 30mg per day of dietary alpha-tocopherol (a component of vitamin E) needed can easily be reached through diet, from sources such as almonds, tomato sauce and sunflower seeds, among others.
The alpha-tocopherol source used was Roche ROVIMIX E50, an alpha-tocopheryl acetate containing 500 mg [alpha]-tocopherol [g.
Another form of vitamin E, known as alpha-tocopherol, found naturally in olive oil, almonds, and sunflower seeds, appeared to be harmless.
The daily dose in the study was 400 international units of alpha-tocopherol vitamin E, the form most active in people.
Genetic variability of alpha-tocopherol and gamma-tocopherol in corn embryos.
This may explain why vitamin E found in foods is much more effective than the single alpha-tocopherol supplements.
Almonds are the best source of alpha-tocopherol, or absorbable vitamin E: a handful contains 164 calories.