NUTRITN 230 Lecture Notes - Lecture 8: Brassicaceae, Carboxylation, Phylloquinone
20 Apr 2016
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Document Summary
The various antioxidants act in different parts of the cell. Vitamin e is a fat-soluble antioxidant - rda is 15 mg/day (most people do not meet rda) Vitamin e is a family of compounds that include tocopherols and tocotrienols. Vitamin e has 8 compounds (vitamer) forms that includes 4 tocopherols and 4 tocotrienols. A-tocopherols has the most vitamin e activity and is found in most supplements. A-tocopherol is the preferred vitamer form and most easily absorbed o. Gamma-tocopherols: the form that"s most abundant in foods (70-75% of vit e in the us diet) Vitamin e was the first identified as essential for reproductive fertility. Its action is primarily as an antioxidant, working in cell membranes, protecting them from damage by preventing oxidation of unsaturated fatty acids > a molecule is oxidized when it loses h+ Vitamin e prevents molecules from oxidation by providing h+
