5,6-反式维生素 D3(5,6-反式胆钙化醇;5,6-反式骨化醇)是维生素 D3 的光产物。维生素 D3 是维生素 D 的天然形式,代谢激活后能诱导细胞分化并抑制癌细胞增殖。
体外研究
通过测定正常人角质形成细胞中 ({}^{3})H-胸苷掺入 DNA 来评估 5,6-反式维生素 D3 的影响。结果表明,在浓度为 (10^{-6}) M 时,5,6-反式维生素 D3 才能显著抑制细胞增殖。维生素 D 受体(VDR)对 5,6-反式维生素 D3 的解离常数为 560 nM。
文献信息
[EN] SYNTHESIS OF CHOLESTEROL AND VITAMIN D3 FROM PHYTOSTEROLS<br/>[FR] SYNTHÈSE DE CHOLESTÉROL ET DE VITAMINE D3 À PARTIR DE PHYTOSTÉROLS
申请人:FERMENTA BIOTECH LTD
公开号:WO2021005618A1
公开(公告)日:2021-01-14
The present invention discloses novel method for synthesizing vegan cholesterol and vitamin D3 from inexpensive crude phytosterol.
本发明揭示了一种从廉价的粗植物甾醇中合成素食胆固醇和维生素D3的新方法。
PROTEIN-POLYSACCHARIDE CONJUGATES AND USE FOR ENCAPSULATING NUTRACEUTICALS FOR CLEAR BEVERAGE APPLICATIONS
申请人:Livney Yoav D.
公开号:US20120288533A1
公开(公告)日:2012-11-15
The present invention provides protein (or peptide)-polysaccharide (or oligosaccharide) conjugates (PPC) as nanocapsular vehicles for nanoencapsulation of biologically active compounds, particularly nutraceuticals. The PPCs efficiently protect both hydrophobic (i.e., water insoluble) and hydrophilic (i.e., water soluble) nutraceuticals, to provide a composition which, when added to a beverage, disperses so as to provide a clear or transparent solution. In some embodiments, the PPCs are Maillard reaction based PPCs. Advantageously, the conjugates of the present invention protect the nutraceuticals from degradation, both during shelf life and upon gastric digestion.