Diosgenin, a steroid sapogenin, is the product of hydrolysis by acids, strong bases, or enzymes of saponins, extracted from the tubers of Dioscorea wild yam, such as the Kokoro. The sugar-free (aglycone), diosgenin is used for the commercial synthesis of cortisone, pregnenolone, progesterone, and other steroid products. ==Sources== It is present i...
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http://en.wikipedia.org/wiki/Diosgenin
(from the article `sapogenin`) Methods of converting the steroid sapogenin diosgenin into progesterone have been developed. An abundant source of diosgenin is a Mexican yam called ... ...steroid drugs, however, are undoubtedly the oral contraceptives, which were introduced in the early 1960s. These synthetic materials, which act by ... ...
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http://www.britannica.com/eb/a-z/d/52
<chemical> (25r)-spirost-5-en-3-beta-ol. A steroid sapogenin which is isolated from various plants. Can be converted to ecdysone, pregnenolone, and progesterone. Synonym: nitogenin. ... Chemical name: Spirost-5-en-3-ol, (3beta,25R)- ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: dī-os′jen-in Definitions: 1. A steroid sapogenin found in the roots of plants such as the yam; its steroid portion serves as a source from which pregnenolone and progesterone can be prepared. Synonyms: nitogenin
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http://www.medilexicon.com/medicaldictionary.php?t=24998
a crystalline compound, CHO, the aglycone of dioscin: used in the synthesis of steroidal hormones, as of progesterone.
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https://www.infoplease.com/dictionary/diosgenin
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