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:
“[In government] the problem to be solved is, not what form of government is perfect, but which of the forms is least imperfect.”
—James Madison (1751–1836)
“Your letter is come; it came indeed twelve lines ago, but I
could not stop to acknowledge it before, & I am glad it did not
arrive till I had completed my first sentence, because the
sentence had been made since yesterday, & I think forms a very
good beginning.”
—Jane Austen (1775–1817)
“Ye know why the forms are fair, ye hear how the tale is told:
It is all triumphant art, but art in obedience to laws,”
—Robert Browning (1812–1889)