Profile Pic of Dr. Salman Ahmed Dr. Salman Ahmed

Chapter 4.23 - vitamin e (tocopherols and tocotrienols) (natural-occurring antioxidant; bright and dark side). in: antioxidants effects in health. edited by seyed mohammad nabavi and ana sanches silva

  • Authors Details :  
  • Ziyad Khan,  
  • Salman Ahmed,  
  • Marya,  
  • Hammad Ullah,  
  • Haroon Khan

Journal title : Antioxidants Effects in Health

Publisher : Elsevier

Page Number : 547-560

270 Views Other

Vitamin E is extensively available in the natural world and is produced by prototrophs such as plants, algae, and blue-green algae. Vitamin E is used as a dietary supplement, an antioxidant food stabilizer, a pharmaceutical additive, and a preservative in livestock feed. Several types of vitamin E can be differentiated by the position and number of the methyl functional group, and each form has a unique biological role. The function of antioxidants such as vitamin E is to defend cells from the effects of oxidative stress. Vitamin E is a free radical scavenger converted to vitamin E radical, then converted back to vitamin E by ascorbic acid. Vitamin E was discovered by Evans and Bishop in 1922; it has proved to be an effective nutrient for reproduction. It is also possible for vitamin E to act by a mechanism not directly linked to the inhibition of oxidation. Such non-antioxidant actions of vitamin E may result from gene regulation and specific cell signalling. The function of vitamin E in cellular signalling, especially its biological impact, is undoubtedly an imperative subject for future studies. The explicit roles of the several isomers and esters of vitamin E analogues should also be the subjects of future studies.

Article DOI & Crossmark Data

DOI : https://doi.org/10.1016/B978-0-12-819096-8.00066-5

Article Subject Details


Article Keywords Details



Article File

Full Text PDF


Article References




More Article by Dr. Salman Ahmed

Analgesic and antiemetic activity of cleome viscosa l.

The seeds of cleome viscosa are used in traditional systems of medicine for the treatment of many diseases in asia. this study evaluated fixed oil from the seeds of cleome viscosa...

Toxicity assessment of mucuna pruriens linn seeds

Plants have been used as medicine for the treatment of diseases for thousands of years. these herbal remedies, although natural, can cause some serious damaging effects on the vita...

Antiemetic activity of some aromatic plants

The current study was conducted to explore the antiemetic activity of ten aromatic medicinal plants viz., carissa carandus l. (fruits), chichorium intybus l (flowers), cinnamum tam...

Anti-emetic activity of some leguminous plants

Crude methanol extracts of the leaves of adenanthera pavonina l., peltoforum roxburghii l, prosopis cineraria l., and prosopis juliflora dc., were evaluated for anti-emetic activit...