Tocopherol - Wikipedia
α-Tocopherol is the main source found in supplements and in the European diet, where the main dietary sources are olive and sunflower oils, [2] while γ-tocopherol is the most common form in the American diet due to a higher intake of soybean and corn oil.
α-Tocopherol - Wikipedia
It is found most in the membrane's non-raft domains, associated with omega-3 and 6 fatty acids, to partially prevent oxidation. [3] The most prevalent form, α-tocopherol, is involved in molecular, cellular, biochemical processes closely related to overall lipoprotein and lipid homeostasis .
Alpha-Tocopherol | C29H50O2 | CID 14985 - PubChem
The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. It has a role as an antioxidant, a nutraceutical, an antiatherogenic agent, an EC 2.7.11.13 (protein kinase C) inhibitor, an anticoagulant, an immunomodulator, an antiviral agent, a micronutrient, an algal metabolite and a plant ...
Alpha-tocopherol: roles in prevention and therapy of human …
Alpha-tocopherol, one of the eight isoforms of vitamin E, is the most potent fat-soluble antioxidant known in nature. For years, it was thought that α-tocopherol only functioned as a scavenger of lipid peroxyl radicals, specifically, oxidized low-density lipoprotein (oxLDL), thereby serving as a chief antioxidant for the prevention of ...
Alpha Tocopherol - an overview | ScienceDirect Topics
Alpha-tocopherol is considered to be the most active. It is a membrane stabilizer and antioxidant that scavenges oxygen free radicals, lipid peroxy radicals and singlet oxygen. • Alpha-tocopherol has become almost synonymous with vitamin E, although technically the term ‘vitamin E’ refers to the other tocopherols as well. •
Alpha-Tocopherol - an overview | ScienceDirect Topics
Alpha-tocopherol (α-tocopherol) is one of the four most widespread homologs of tocopherol, the major form of vitamin E, and is the most active antioxidant tocopherol and the form that the liver preferentially incorporates into lipoproteins that are released into the bloodstream for distribution to peripheral tissues (Harris, Devaraj, & Jialal ...
Vitamin E | Linus Pauling Institute | Oregon State University
Plant seeds and nuts, especially sunflower seeds, almonds, and hazelnuts, are rich sources of α-tocopherol such that vegetable oils (e.g., olive oil and sunflower oil) are rich in α-tocopherol. Other sources include tomatoes, avocados, spinach, asparagus, …
Tocopherols and Tocotrienols in Common and Emerging Dietary …
Tocopherols are found in lipid-rich regions of cells (e.g., mitochondrial membranes), fat depots, and lipoproteins such as low-density lipoprotein cholesterol. Their health benefits may also be explained by regulation of gene expression, signal transduction, and modulation of cell functions.
Alpha-Tocopherol - an overview | ScienceDirect Topics
Alpha-tocopherol is the only actively maintained form in the human body and may be found in the largest quantities in blood and tissues. It is a component of the total peroxyl radical antioxidant system that directly reacts with ROS, protecting from lipid peroxidation.
Advances in plant tocopherol biosynthesis: from pathway
The most biologically active variant of vitamin E found within the human body is α-tocopherol. It features three methyl groups that are attached to the chromanol ring at the 5, 7, and 8 positions (Fig. 1B) [].Owing to its significant biological activity, α-tocopherol is the predominant form of vitamin E utilized in dietary supplements [].The primary form, α-tocopherol, is essential in ...