Clusia nemorosa has been widely used in folk medicine to treat various ailments, including headaches and inflammation. Investigation of the fruits of Clusia nemorosa (Clusiaceae) led to the isolation and characterization of a new phloroglucinol derivative, named 6S,8S,28S-nemorosic acid (1), together with seven known compounds: friedelin (2), β-sitosterol (3), stigmasterol (4), β-sitosterol gly...

The phytochemical analysis of the fresh aerial parts of Portulaca oleracea (Portulacaceae), growing in Jordan, using conventional chromatographic procedures resulted in the isolation of Beta-sitosterol, Beta-sitosterol-glucoside, N,N'-dicyclohexylurea, and allantoin. The last three compounds were isolated for the first time from this plant. The structure elucidation of these compounds was attai...

A MONG the various substances tested on / ^ experimental animals, /3-sitosterol was -L-^found to be one of the most effective in minimizing hypercholesterolemia and in retarding atherosclerotic plaque formation. Very few studies have been done on regression of established hypercholesterolemia and atherosclerosis. The substances used in regression studies were choline, potassium iodide, and hepa...

A rapid method has been developed for the quantitative estimation of β-sitosterol, total phenolic and flavonoid compounds present in the leaves of Moringa oleifera Lam. (Family: Moringaceae). The hydroalcoholic extract of the leaves was subjected for the quantitative estimation of these compounds. The hydroalcoholic extract of the leaves of Moringa oleifera was prepared by the process of cold m...

Previous studies in man have indicated that administration of either plant sterols or unsaturated dietary fats causes decreases in certain serum lipids. This report presents the results of a long-term 7-phase study of the comparative effects of the single and combined administration of plant sterols (p-sitosterol) and a highly unsaturated vegetable oil (safflower oil) in 15 ambulatory subjects....

Alpinia galanga is rhizome, generally known as Greater galangal and is selected for isolation of newer constituents accountable for various therapeutic activities. Present study is intended to isolate glycoside from Alpinia galanga rhizomes. Alpinia galanga methanolic extract was column chromatograph and eluted with ethyl acetate-methanol (99:1) to isolate compound β-Sitosterol Diarabinoside. H...

Soybean extract residue (scum), a waste of soybean oil production, was examined as a raw material for C17-ketosteroid production. As a model process, its bioconversion to 9α-hydroxyandrost4-ene-3,17-dione (9-OH-AD) by Mycobacterium sp VKM Ac-1817D was studied. The content of transformable sterols (sitosterol, stigmasterol and campesterol) in scum was estimated at ∼14%. The bioconversion of scum...

Column chromatography of the light petroleum fraction from the methanolic extract of the stem bark of Salix tetrasperma Roxb. (Salicaceae) resulted in the isolation of beta-sitosterol acetate, friedelin, 3beta-friedelinol, beta-amyrin, beta-sitosterol, beta-sitosterol-O-glucoside in addition to palmitic acid. From the dichloromethane fraction of the leaves, catechol and tremulacin were isolated...

Soybeans (Glycine max) exposed to chronic levels of ozone showed a linear decrease in biomass with increasing concentration. The foliar free sterols increased while the steryl ester, and the steryl glycosides, a minor component, decreased with increasing pollutant concentration. Of the free sterols, stigmasterol showed the largest increase, followed by sitosterol; campesterol, however, decrease...