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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Vitamin E ： ウィキペディア英語版 Vitamin E Vitamin E refers to a group of compounds that include both tocopherols and tocotrienols. Of the many different forms of vitamin E, γ-tocopherol is the most common form found in the North American diet. γ-Tocopherol can be found in corn oil, soybean oil, margarine, and dressings.〔 α-tocopherol, the most biologically active form of vitamin E, is the second-most common form of vitamin E in the diet. This variant can be found most abundantly in wheat germ oil, sunflower, and safflower oils.〔 As a fat-soluble antioxidant, it stops the production of reactive oxygen species formed when fat undergoes oxidation.〔(【引用サイトリンク】title=Vitamin E fact sheet )〕 Regular consumption of more than 1,000 mg (1,500 IU) of tocopherols per day〔(【引用サイトリンク】title=Vitamin E — Health Professional Fact Sheet )〕 may be expected to cause hypervitaminosis E, with an associated risk of vitamin K deficiency and consequently of bleeding problems. ==Forms== The nutritional content of vitamin E is defined by α-tocopherol activity. The molecules that contribute α-tocopherol activity are four tocopherols and four tocotrienols, identified by the prefixes alpha- (α-), beta- (β-), gamma- (γ-), and delta- (δ-). Natural tocopherols occur in the RRR-configuration only. The synthetic form contains eight different stereoisomers and is called 'all-rac'-α-tocopherol. Water-soluble forms such as d-alpha-tocopheryl succinate are used as food additive. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vitamin E」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.