Forms
The eight forms of vitamin E are divided into two groups; four are tocopherols and four are tocotrienols. They are identified by prefixes alpha-, beta-, gamma-, and delta-. Natural tocopherols occur in the RRR-configuration only. The synthetic form contains eight different stereoisomers and is called all-rac-α-tocopherol.
Read more about this topic: Vitamin E
Famous quotes containing the word forms:
“Mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed.”
—Thomas Jefferson (1743–1826)
“Literary works cannot be taken over like factories, or literary forms of expression like industrial methods. Realist writing, of which history offers many widely varying examples, is likewise conditioned by the question of how, when and for what class it is made use of.”
—Bertolt Brecht (1898–1956)
“How superbly brave is the Englishman in the presence of the awfulest forms of danger & death; & how abject in the presence of any & all forms of hereditary rank.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)