公开(公告)号：US20240003790A1

公开(公告)日：2024-01-04

申请号：US18258059

申请日：2021-12-16

申请人： Conopco, Inc., d/b/a UNILEVER

发明人： Susan BATES ,  Stephanie Maria BLISSETT ,  Zane Ashley James BROUGH ,  Steven Michael CENCI ,  Gerald CLARKSON ,  Raymond John MARRIOTT

IPC分类号： G01N1/40 ,  B01D11/02 ,  G01N35/00

CPC分类号： G01N1/4055 ,  B01D11/0203 ,  G01N1/4022 ,  G01N35/0099 ,  G01N2001/4061 ,  G01N2001/4088

摘要： A method of extracting a substance comprising the steps of: placing a substrate on which a substance has been adsorbed into a container; feeding a solvent into the container whilst restricting its exit to achieve a predetermined pressure of the solvent in the container, wherein the solvent has a critical point and the predetermined pressure is above the critical point of the solvent; releasing the solvent and an extract comprising extracted substances into a separator; reducing the temperature and pressure in the separator to remove a gaseous portion of the solvent from the extract; collecting the extract remaining from the separator.

公开(公告)号：US20180044364A1

公开(公告)日：2018-02-15

申请号：US15552661

申请日：2016-02-25

申请人： Conopco, Inc., d/b/a UNILEVER

发明人： Raymond John MARRIOTT ,  Paul Simon STEVENSON

IPC分类号： C07H1/08 ,  B01J20/14 ,  C07H15/06 ,  B01D15/00 ,  B01D11/04

CPC分类号： C07H1/08 ,  B01D11/0403 ,  B01D15/00 ,  B01J20/14 ,  C07H15/04 ,  C07H15/06

摘要： A method of extracting at least one rhamnolipid compound from a rhamnolipid fermentation mixture, the method comprising the steps of: (a) admixing an inert adsorbing support with a rhamnolipid fermentation mixture; (b) dissolving the mixture in an organic solvent at a temperature higher than 31° C. and at a pressure higher than 73 bars; (c) separating at least one fatty compound; (d) adding a co-solvent to said organic solvent; (e) modifying temperature and/or pressure; (f) separating a first rhamnolipid compound; and (g) separating a second rhamnolipid compound.