Quantitative isolation of sterols
نویسندگان
چکیده
منابع مشابه
Quantitative Isolation of Sterols.
I n 1909, Windaus published the important discovery that cholesterol, sitosterol, and P-cholestanol form sparingly soluble addition compounds with digitonin, whereas a-cholestanol and cholesterol esters do not (1). Ever since, this reaction has been a major tool of steroid chemists; it has been used in many methods for cholesterol determination and in many separations of steroids with the beta ...
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Background: The genus Lomatopodium Fisch. & C.A.Mey., belongs to Apiaceae family and contains one herbaceous species growing wildly in Iran. There are only a few papers about the chemical constituents of these plants. Here, we focused on the isolation and identification of the main flavonoid glycosides and sterols from the aerial parts of L. staurophyllum, which has not been previously reported...
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The glycoside, hypoxoside, identified and isolated from the corms of the African potato (Hypoxis hemerocallidea) has shown promising anticancer activities. The African potato is used as an African traditional medicine for its nutritional and medicinal properties. Most research has been carried out on H. hemerocallidea (formerly known as H. rooperi), with very little or nothing on other Hypoxis ...
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The electrophoretic behavior of powdered ergosterol crystals is identical with that previously found for cholesterol within the limits of experimental error. Evidence for an adsorption hypothesis is presented to explain this phenomenon.
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A method is described for the quantitative separation of radioactive bile acids and neutral sterols in human faeces on a potassium hydroxide-treated silicic acid column. Results obtained with faecal extracts containing metabolites derived from radioactive cholesterol, cholic acid, and chenodeoxycholic acid show that the efficiency of extraction is at least 96% and that mutual contamination betw...
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ژورنال
عنوان ژورنال: Journal of Lipid Research
سال: 1963
ISSN: 0022-2275
DOI: 10.1016/s0022-2275(20)40352-9