The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2021
Filed:
May. 16, 2017
Heilongjiang Eppen New Materials Co., Ltd., Heilongjiang, CN;
Jiyin Ma, Ningxia, CN;
Tingyi Wen, Ningxia, CN;
Shuwen Liu, Ningxia, CN;
Yong Liang, Ningxia, CN;
Daihuan Li, Ningxia, CN;
Yun Zhang, Ningxia, CN;
Xiuling Shang, Ningxia, CN;
Chunguang Zhao, Ningxia, CN;
Xiaowei Guo, Ningxia, CN;
Gang Meng, Ningxia, CN;
HEILONGJIANG EPPEN NEW MATERIALS CO., LTD., Daqing, CN;
Abstract
A method for fermentation-production of a pentanediamine, comprising: culturing a cell expressing a lysine decarboxylase to obtain a whole cell fermentation broth comprising a pentanediamine; and extracting the pentanediamine from the whole cell fermentation broth, and striping the whole cell fermentation broth of carbon dioxide contained therein before adding a strong base. The method greatly increases a production volume of the pentanediamine.