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单词 sterol
释义

steroln.

/ˈstɪərɒl//ˈstɛrɒl/
Etymology: The ending of cholesterol n., ergosterol n., etc., used substantively.
Biochemistry.
Any of a class of solid, unsaturated steroid alcohols that occur naturally both free and in combination as esters or glycosides and are classified according to their origin as mycosterols, phytosterols, zoosterols, and marine sterols.
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sterol1913
1913 Biochem. Jrnl. 7 617 It is now proposed to limit the terms zoo- and phyto-sterol to sterols which are found as tissue constituents of animals and plants respectively.
1915 Jrnl. Chem. Soc. 108 ii. 290 The substance left after the removal of the sterols from the unsaponifiable portion of the fats has also been investigated.
1926 Rep. Med. Res. Council 15 The vitamin in which cod-liver oil is especially rich..is actually formed when cholesterol and certain other sterols are exposed to rays of ultra-violet light.
1939 A. Huxley After Many a Summer i. v. 65 Those sterols!.. Always linked up with senility. The most obvious case, of course, was cholesterol.
1959 L. F. Fieser & M. Fieser Steroids xi. 358 The characteristic sterol fraction from freshwater green algae (Chlorophyceae) is the common sitosterol mixture of higher plants.
1975 Lipids X. 542/1 Sterols have been isolated from both adult and juvenile ivy in free and esterified form. Stigmasterol..is the main component.
1979 Jrnl. Org. Chem. 44 3378/1 Algae and fungi produce sterols with 24β configurations, while most higher plants produce sterols with 24α configurations.
This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2019).

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n.1913
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