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    • 7. 发明申请
    • A PROCESS FOR PREPARATION OF BIOAVAILABLE WHITE CURCUMIN - A UNIQUE BLEND OF HYDROGENATED CURCUMINOIDS
    • 一种制备可生物降解的白矾石的方法 - 加氢的UR O A A UE IDS IDS
    • WO2016097914A1
    • 2016-06-23
    • PCT/IB2015/059348
    • 2015-12-04
    • AUREA BIOLABS PRIVATE LIMITED
    • GOPI, SreerajJACOB, JobyGEORGE, Robin
    • A61K31/045A61K31/05C07C57/42C07C57/72C07C209/26
    • A61K31/121A23L33/105A23V2002/00A61K47/6951C07C41/20C07C45/62C08B37/0015C07C43/23C07C49/225
    • The present invention discloses a process for preparation of white curcumin from purified curcuminoids. The curcuminoids are obtained by solvent extraction and crystallization of dried turmeric powder. The autoclave is charged with ethyl acetate and the 95% purity curcuminoids mixture is added to and stirred for uniformity at room temperature. 5% (w/w) of 10% palladium carbon is added to the reaction mixture and allowed for hydrogenation in the presence of hydrogen gas at 2 lbps pressure and stirred continuously for 15 hours. Once the reaction is completed, the reaction mixture is filtered and washed with ethyl acetate. The ethyl acetate is distilled off and crude mass is stirred with water to obtain a solid precipitate. Finally, the solid obtained is filtered and dried to pale brown crystals of white curcumin. White curcumin is encapsulated with beta- cyclodextrin, which exhibited increased bioavailability. White curcumin also exhibited anti-oxidant and chemopreventive activities.
    • 本发明公开了一种从纯化姜黄素制备白姜黄素的方法。 姜黄素通过溶剂萃取和结晶的姜黄粉得到。 向高压釜中加入乙酸乙酯,并将95%纯度的姜黄色调混合物加入并在室温下搅拌均匀。 将5%(w / w)的10%钯碳加入到反应混合物中,并在氢气存在下以2l / s压力进行氢化并连续搅拌15小时。 一旦反应完成,将反应混合物过滤并用乙酸乙酯洗涤。 蒸馏除去乙酸乙酯,将粗物质与水一起搅拌,得到固体沉淀物。 最后,将得到的固体过滤并干燥成白色姜黄素的淡棕色晶体。 白色姜黄素用β-环糊精包封,其呈现出增加的生物利用度。 白姜黄素还具有抗氧化和化学预防作用。