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Complex And Hydrolyze Phytosterols From Several Materials And Blend

Posted on:2008-04-17Degree:MasterType:Thesis
Country:ChinaCandidate:Q LiFull Text:PDF
GTID:2121360215475073Subject:Applied Chemistry
Abstract/Summary:PDF Full Text Request
Phyosterols are naturally occrring compounds that exist in plants. There are many kinds of phyosterols in nature, mainly includingβ-sitosterol, stigmasterol, brassicasterol and campesterol etc. Phytosterols appears to involve the inhibition of cholesterol absorbtion from the proximum jejunum by competing with cholesterol at specific uptake sites. So it can prevent many sicks. Recently, these dietary plant sterols have received a great deal of attention because of their possible anti-cancer properties and their ability to decrease cholesterol levels when fed to a number of mammalian species, including humans. At present, phytosterol mainly extracted from deodorizerd istillates of soybean oil in our country. There have few report on phytosterol extraction from rapeseed oil and snow pine. Therefore, this paper studied the technological condition of extraction, and purified. Used of many kinds of materials that are dealt with differently to get crude phytosterols. Dissolved it in solvent, which reacted with metal salts to complex. Complex was then hydrolyzed in hot distilled water and the white phytosterols was filtered and dried., The white phytoserols was dissolved in solvent. Through reaction, purification phytosterols was filtered and recrystallized. Then it is detected it by TLC, HPLC. Mixture of different component phytosterols was dissolved in solvent. Preferred blending of phytosterols was recrystallized, dried and detected. Through study of factors (solvent choosing, mixture solvent ratio, temperature etc.) of each extraction and purification step, the more economical, rational and convenient way is gotten. Not only in the medicine, but also in the scientific research and industrial production, it has very important significance.
Keywords/Search Tags:phytosterol, complexing and hydrolyzing, blending
PDF Full Text Request
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