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 (sī-tŏs′tə-rôl′, -rōl′, sĭ-)
Any of a group of sterols that occur in high concentrations in certain plants and are used in the synthesis of steroid hormones.

[Greek sītos, food, grain + sterol.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Elements & Compounds) a white powder or waxy white solid extracted from soya beans, consisting of a mixture of isomers of the formula C29H50O with other sterols: used in cosmetics and medicine
[C20: from Greek sitos food, grain + sterol]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(saɪˈtɒs təˌrɔl, -ˌrɒl)

any of five steroid alcohols having the formula C22H50O, esp. the beta form: used in organic synthesis.
[1898; < Greek sīto-, comb. form of sîtos grain + sterol]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Several studiesTrusted Source have suggested that beta-sitosterol can relieve urinary symptoms of BPH, including the strength of urine flow.
Comparison of the immunomodulatory effects of the plant sterol beta-sitosterol to simvastatin in peripheral blood cells from multiple sclerosis patients.
We have allocated extra resources and we remain ready to help in any way we can." MEBO, one of Julphar's leading products, is an innovative patented formula, composed of a combination of natural ingredients such as beta-Sitosterol, sesame oil and beeswax.
Psyllium seed also contains ascorbic acid, aucubin, beta-carotene, beta-sitosterol, potassium, riboflavin, selenium, sodium, chromium, cobalt, fiber, linoleic acid, magnesium etc.
The three most abundant plant sterols are beta-sitosterol, campesterol, and stigmasterol.
Avocado also contains fiber, protein and beneficial phytochemicals, such as beta-sitosterol, glutathione and lutein, which help protect against various diseases and illnesses.
Chadha, "Diosgenin and beta-sitosterol: isolation from solanum xanthocarpum tissue cultures," Science, vol.
Moringa helps reduce cholesterol levels due to&nbsp;( beta-sitosterol , a power packed nutrient that blocks LDL "bad" cholesterol build-up and acts as an anti-inflammatory agent for the body.
Beta-Sitosterol. Beta-sitosterol is a plant-derived sterol, also known as a phytosterol (Table 1(g)).
GC-MS analysis from the crude extracts yielded five compounds that were detected (Table 3), namely caffeine, theobromine, gammatocopherol, stigmasterol and beta-sitosterol. Among these compounds detected, caffeine and theobromine were the two compounds that showed the highest percentage in early fermentation process.
She learned that Moringa, formally known as Moringa Oleifera Lam (Moringaceae), is distributed in many countries of the tropics and subtropics, and contains an impressive variety of nutrients, including zeatin, quercetin, beta-sitosterol, caffeoylquinic acid, and kaempferol.