菜籽甾醇

精制甾醇中大豆总甾醇含量为85%，其中β-谷甾醇42.3%、豆甾醇18.1%、菜籽甾醇24.5%。

The phytosterol content in the purified sample was 85 % , including 42.3 % Betasitosterol 、 18.1 % stigmasterol 、 24.5 % campesterol .

从油脂精炼副产物中提取的植物甾醇主要包括β-谷甾醇、豆甾醇、菜油甾醇和菜籽甾醇，能抑制人体对胆固醇的吸收，是一种降低血清胆固醇的功能活性成分。

Phytosterols , including J3-sitosterol , stigmasterol , campesterol and brassicasterol mainly , were obtained commonly from by-product of refining vegetable oil . Phytosterols have been use as a novel functional food ingredient with plasma cholesterol lowering activity which works by inhibiting the absorption of cholesterol .

以不同剂量（1.5、3.56、.5mg/mL）的菜籽植物甾醇给小白鼠灌胃，实验45d后测定各项指标，并与正常对照组、高脂对照组相比较。

The mice were fed by gavage with rapeseed phytosterol at the level of 1.5 mg / mL3.5 mg / mL6.5 mg / mL , respectively . After forty-five days , some indexes were determined , and were compared with that of normal group and hyperlipidemic group .

菜籽植物甾醇的提取、纯化及抗氧化活性研究

Study on Extraction , Purification and Anti-oxidation Activity of Rapeseed Phytosterol

菜籽植物甾醇降小鼠血脂功能的实验研究菜籽多酚的抗氧化作用

Study on lowering blood-fat effect of rapeseed phytosterol on mice Antioxidation of polyphenol from rapeseed

接着探索了重结晶法精制菜籽植物甾醇的最佳溶剂和结晶条件，得到了纯度为99.12%的菜籽植物甾醇标准品。

The preparation and purification of rapeseed phytosterol standard sample by a recrystallization method were studied , obtained the best solvents and operation condition . The purity of rapeseed phytosterol might reach 99.12 % .

通过酯化反应、弱碱中和、水洗、油水分离、抽滤所得到的菜籽植物粗甾醇含量为55.28%，得率为12.31%。

Gained the content of phytosterol were 55.28 % , Their recovery were from 12.31 % .