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:
Sep. 28, 2021
Filed:
Dec. 29, 2020
Cofco (Jilin) Bio-chemical Technology Co., Ltd, Changchun, CN;
Nutrition & Health Research Institute, Beijing, CN;
Cofco Biotechnology Co., Ltd., Bengbu, CN;
Yi Tong, Beijing, CN;
Yi Li, Beijing, CN;
Yuan Zhang, Beijing, CN;
Bo Chen, Beijing, CN;
Xiaoyan Wang, Beijing, CN;
Tai An, Beijing, CN;
Kai Yang, Beijing, CN;
COFCO (JILIN) BIO-CHEMICAL TECHNOLOGY CO., LTD, Changchun, CN;
NUTRITION & HEALTH RESEARCH INSTITUTE, COFCO CORPORATION, Beijing, CN;
Abstract
The present disclosure relates to the technical fields of genetic engineering and microbial fermentation, and discloses a recombinant strain for producing L-lactic acid, wherein the recombinant strain is obtained by genetically modifying a starting strain, the activity of D-lactate dehydrogenase of the recombinant strain is weakened or inactivated, and the activity of L-lactate dehydrogenase is enhanced, as compared with the starting strain. The present invention can significantly improve the fermentation effect, the yield of the L-lactic acid and the optical purity of the product L-lactic acid.