公开(公告)号：EP3204346B1

公开(公告)日：2020-09-02

申请号：EP15801283.1

申请日：2015-10-07

申请人： Council of Scientific and Industrial Research

发明人： HAZARIKA, Swapnali ,  KONWAR, Dilip ,  BORAH, Hirokjyoti ,  BORTHAKUR, Somiron ,  BARKAKATI, Pranab ,  BORA, Mohan Modon ,  DAS, Ram Nath

IPC分类号： C07C37/68 ,  C07C39/21 ,  B01D61/02 ,  B01D71/06 ,  B01D71/68

公开(公告)号：EP3204346A1

公开(公告)日：2017-08-16

申请号：EP15801283.1

申请日：2015-10-07

申请人： Council of Scientific and Industrial Research

发明人： HAZARIKA, Swapnali ,  KONWAR, Dilip ,  BORAH, Hirokjyoti ,  BORTHAKUR, Somiron ,  BARKAKATI, Pranab ,  BORA, Mohan Modon ,  DAS, Ram Nath

IPC分类号： C07C37/68

摘要： The present invention relates to a process for separation of oxyresveratrol molecule from the extracted solution of Artocarpus lakoocha Roxb. through membrane application. The product can be obtained in excellent yield upto 81% in case of extraction using water as solvent and can be separated from the extracted mixture upto 98% using indigenously developed nanofiltration membrane. Only the desired Trans isomer is obtained and no cis isomerization takes place during the extraction process.

摘要翻译： 本发明涉及通过膜分离从提取的Artocarpus lakoocha Roxb溶液中纯化氧化白藜芦醇的方法。 使用水作为提取溶剂可以以高达81％的优异产率获得产物，并且可以使用纳滤膜从提取物中分离至高达98％。 只有期望的反式异构体被获得并且在提取过程中不发生顺式异构化。