TL;DR: Evidence is presented that the addition of a chicks'diet of mixed soybean sterols and of purified sitosterols in the presence of cottonseed oil and cholesterol causes markedly lower plasma and liver levels of cholesterol than the addition to the diet of a mixture of cholesterol andottonseed oil alone.
Abstract: SummaryEvidence is presented that the addition to the chicks'diet of mixed soybean sterols and of purified sitosterols in the presence of cottonseed oil and cholesterol causes markedly lower plasma and liver levels of cholesterol than the addition to the diet of a mixture of cholesterol and cottonseed oil alone. The possibility is discussed that one or more of the constituents of the mixed soybean sterols interferes with the absorption of cholesterol.
TL;DR: In this paper, the supercritical carbon dioxide extraction of biologically active, high valued compounds such as carotenoids (lycopene, β-carotene), tocopherols, fatty acids and sitosterols from industrial tomato waste was investigated.
Abstract: In this work the supercritical carbon dioxide extraction of biologically active, high valued compounds such as carotenoids (lycopene, β-carotene), tocopherols, fatty acids and sitosterols from industrial tomato waste was investigated. The differences of two samples of different sources and the effect of air-dried and deep-frozen storages were also reported. The effects of extraction parameters (pressure and temperature) on the extraction yields and the compositions of the products were determined with statistical analysis. Supercritical fluid extraction was compared to conventional extraction processes of tomato pomace samples. The extracts were analysed by gas chromatography, by high-performance liquid chromatography and by TLC-densitometry. The extraction yields and the amounts of lycopene, tocopherols and sitosterols depend on the experimental conditions. The product obtained by supercritical CO 2 extraction at 460 bar and 80 °C contained the highest concentration of carotenoids with 90.1% of lycopene, while products rich in tocopherols and phytosterol were obtained above 300 bar and 40 °C.
TL;DR: A mechanism for the biogenesis of the C-24 alkyl group in phytosterols is given and the biochemically predictable positions of 13C labels in sitosterol are confirmed.
TL;DR: In this article, a pharmaceutical preparation which comprises sitosterols in a water dispersible powder is described, and a method for preparing such a dispersable powder is provided for preparation.
Abstract: A pharmaceutical preparation is described which comprises sitosterols in a water dispersible powder. A method is provided for preparing such a dispersible powder.