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公开(公告)号:US5814513A
公开(公告)日:1998-09-29
申请号:US732116
申请日:1996-10-15
申请人: Toshiya Tanabe , Tohru Nakamura
发明人: Toshiya Tanabe , Tohru Nakamura
IPC分类号: C12N1/02
CPC分类号: C12N1/02
摘要: A method for removing cells from a fermentation broth obtained by culturing a microorganism belonging to the genus Escherichia through a membrane to separate the cells, comprising adding polyethyleneimine to the fermentation broth to form a mixture, and then filtering the mixture through the membrane to separate the cells, said method resulting in improving the membrane permeation rate compared to when no polyethyleneimine is added.
摘要翻译: 一种从通过膜培养属于埃希氏杆菌属微生物的发酵液中除去细胞以分离细胞的方法,包括向发酵液中加入聚乙烯亚胺以形成混合物,然后通过膜过滤混合物以分离 所述方法与不加入聚乙烯亚胺时相比提高了膜渗透速率。
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公开(公告)号:USRE35609E
公开(公告)日:1997-09-16
申请号:US385888
申请日:1995-02-09
申请人: Masaru Otani , Toshiya Tanabe
发明人: Masaru Otani , Toshiya Tanabe
IPC分类号: C12P19/02 , C12P19/38 , C07H19/06 , B01D15/08 , C07H17/00 , C07H19/00 , C07H19/16 , C07H19/20
CPC分类号: C12P19/02 , C12P19/38 , Y10S435/822
摘要: A biological process for producing a 2',3'-dideoxynucleoside from 2',3'-dideoxyuridine is disclosed. The 2',3'-dideoxynucleoside can be purified readily using a porous nonpolar resin absorbent.
摘要翻译: 公开了从2',3'-二脱氧尿苷生产2',3'-二脱氧核苷的生物学方法。 2',3'-二脱氧核苷可以使用多孔非极性树脂吸收剂容易地纯化。
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