Results 171 to 180 of about 13,982 (209)

Intermediates of stigmasterol metabolism in spodoptera littoralis

Steroids, 1989
Stigmasterol-24,28-epoxide, 22E-stigmasta-5,22,24(28E)-trien-3 beta-ol, and 22E-cholesta-5,22,24-trien-3 beta-ol were identified as normal metabolites of [3H]stigmasterol in Spodoptera littoralis larvae. Relative concentrations of all three of these metabolites increased when a diazasterol inhibitor was fed in combination with stigmasterol in the ...
J A, Svoboda, H H, Rees, M J, Thompson, N, Hoggard   +3 more
openaire   +2 more sources

The metabolism of stigmasterol and cholesterol by Paramecium aurelia

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1971
Abstract 1. 1. Paramecium aurelia , stock 299, can be grown in axenic culture only when supplemented with fatty acids and an appropriate sterol. The metabolic fate of nutritionally active stigmasterol and inactive cholesterol was determined. 2. 2. Stigmasterol is converted to 7-dehydrostigmasterol.
R L, Conner, J R, Landrey, E S, Kaneshiro, W J, Van Wagtendonk   +3 more
openaire   +2 more sources

Stigmasterol and its esters encapsulated in liposomes: Characterization, stability, and derivative formation

Food Chemistry
Morphological characterization of liposomes encapsulated with stigmasterol and its myristic and oleic esters. Results of thermo-oxidative degradation of stigmasterol, fatty acids and identification of oxidized derivatives.
Magdalena Rudzinska, Katarzyna Cieślik-Boczula, Anna Grygier   +2 more
exaly   +2 more sources

Synthesis and Characterization of Stigmasterol Oxidation Products

Journal of Agricultural and Food Chemistry, 2010
The synthesis and structural characterization of a series of oxides of stigmasterol is described providing a valuable series of reference standards for these oxides, analogous to the cholesterol oxidation products (COPs) which have been shown to have detrimental biological effects.
David A, Foley, Yvonne, O'Callaghan, Nora M, O'Brien, Florence O, McCarthy, Anita R, Maguire   +4 more
openaire   +2 more sources

ChemInform Abstract: Stigmasterol Hemihydrate.

ChemInform, 2002
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Gloria A. Benavides, Frank R. Fronczek, Nikolaus H. Fischer   +2 more
openaire   +1 more source

Stigmasterol Removal by an Aerobic Treatment System

2017
Stigmasterol is a phytosterol contained in Kraft mill effluent that is able to increase over 100% after aerobic biological treatment. This compound can act as an endocrine disrupter as its structure is similar to that of cholesterol. Furthermore, stigmasterol contained in Kraft mill effluent shows high toxicity (25-fold that of β-sitosterol) to aquatic
Soledad, Chamorro, Claudia, Xavier, Víctor, Hernández, José, Becerra, Gladys, Vidal   +4 more
openaire   +2 more sources

Oxidation of stigmasterol in heated triacylglycerols

Food Chemistry, 1989
Abstract A triacylglycerol mixture containing 5% stigmasterol by weight and devoid of other unsaponifiables was heated at 180 ± 5°C for several hours. Oxidation products from stigmasterol were separated and isolated by column chromatography and preparative thin-layer chromatography.
George Blekas, Dimitrios Boskou
openaire   +1 more source

Antihypercholesterolemic Studies with Sterols: β-Sitosterol and Stigmasterol

Journal of Pharmaceutical Sciences, 1979
Stigmasterol, which differs from beta-sitosterol by unsaturation at C22, was tested for antihypercholesterolemic activity under an experimental protocol that gave the results expected with beta-sitosterol and cholestyramine. In terms of serum cholesterol, stigmasterol had a barely significant antihypercholesterolemic effect while exhibiting no obvious ...
R F, Chandler, S N, Hooper, H A, Ismail
openaire   +2 more sources

Biosynthesis of stigmasterol from sitosterol in Digitalis Lanata

Steroids, 1969
Abstract After administration of sitosterol-3-14C to a Digitalis lanata plant, radioactive stigmasterol was isolated by chromatography and shown to be radiochemically pure by crystallization to constant specific activity.
R D, Bennett, E, Heftmann
openaire   +2 more sources

Synthesis of 22,23-Epoxyecdysteroids from Stigmasterol

Chemistry of Natural Compounds, 2001
A new synthetic scheme has been developed to synthesize 22,23-epoxyecdysteroids from ...
N. V. Kovganko, V. L. Survilo
openaire   +1 more source