نتایج جستجو برای: stigmasterol glycoside
تعداد نتایج: 6110 فیلتر نتایج به سال:
Ethyl acetate fraction column chromatographic analysis was used to isolate eleven compounds (numerically tagged 1–10) from Cassia occidentalis L. in this study. Two unique metabolites, including a neolignan compound designated as occidentalignan I (9) and flavonoidal glycoside, chrysin-7-O-α-L-rhamnopyranosyl (10), were identified, while silybin A (8) the first flavonolignan be isolated Fabacea...
Barley (Hordeum vulgare) has a much higher content of bioactive substances than wheat (Triticum aestivum). In order to investigate additive and/or synergistic effect(s) on the phytosterol content of barley chromosomes, we used a series of barley chromosome addition lines of common wheat that were produced by normal crossing. In determining the plant sterol levels in 2-week-old seedlings and dry...
Amyloid-β (Aβ), major constituent of senile plaques in Alzheimer's disease (AD), is generated by proteolytic processing of the amyloid precursor protein (APP) by β- and γ-secretase. Several lipids, especially cholesterol, are associated with AD. Phytosterols are naturally occurring cholesterol plant equivalents, recently been shown to cross the blood-brain-barrier accumulating in brain. Here, w...
Plant sterols have shown potent anti-proliferative effects and apoptosis induction against breast and prostate cancers. However, the effect of sterols against hepatic cancer has not been investigated. In the present study, we assessed whether the stigmasterol isolated from Navicula incerta possesses apoptosis inductive effect in hepatocarcimona (HepG2) cells. According to the results, Stigmaste...
The essential oil of Salvia aegyptiaca was analysed by GC/ MS technique. Eighteen compounds were identified. It was found that the essential oil comprises 40% terpenoidal constituents, opposite to 32% fat derivatives. The major terpenoidal component was 1(10)aristolene (19.3%). From the non-volatile matter, β-amyrin, lupeol, β-sitosterol, stigmasterol, β-sitosterol-β-D-glucopyranoside and stigm...
Background & Aims: Magnetically molecularly imprinted polymers (MMIPs) are assumed as kind of sorbent polymers ‎which can separate or determine bioactive compounds from environment fast and specifically. ‎Magnetic properties, stability at various conditions (temperature , ionic strength and pH) and selective ‎function are among the advantages of these polymers in determin...
AIM: To identify the chemical constituents in Cuscuta Chinensis. METHODS: A High-performance liquid chromatography (HPLC) method combined with quadrupole-time-of-flight-mass spectrometry (QTOF-MS) has been developed for precise separation and structural identification of components in Cuscuta Chinensis. Mass spectrometry was performed in reflective time-of-flight using electron spraying ionizat...
As a simple model of rafts in plant cells, the effect of stigmasterol, one of the predominant sterols in plant plasma membranes, on the phase behavior of dipalmitoylphosphatidylcholine (DPPC) multilayers has been studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and freeze-fracture electron microscopy (FFEM) techniques. A partial phase diagram of the binary system has...
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