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. 23, 2013
Filed:
Nov. 22, 2010
Ping Xu, Shanghai, CN;
Limin Wang, Shanghai, CN;
BO Zhao, Shanghai, CN;
Cuiqing MA, Shanghai, CN;
Fei Su, Shanghai, CN;
Fei Tao, Shanghai, CN;
Hongzhi Tang, Shanghai, CN;
Ping Xu, Shanghai, CN;
Limin Wang, Shanghai, CN;
Bo Zhao, Shanghai, CN;
Cuiqing Ma, Shanghai, CN;
Fei Su, Shanghai, CN;
Fei Tao, Shanghai, CN;
Hongzhi Tang, Shanghai, CN;
Shanghai Jiao Tong University, Shanghai, CN;
Abstract
The invention is concerned with the strains offor lactic acid production and the related methods, in which the carbon sources are pentose or hexose or the agricultural or industrial wastes containing pentose or hexose or a mixture of both. According to the invention, the highest amount of-lactic acid produced from glucose is 173 g/L, the optical purity is over 99%, the yield is up to 0.98, and the productivity is up to 2.4 g/L per hour. The highest amount of-lactic acid produced from xylose is 195 g/L, the optical purity is over 99%, the yield is up to 0.98, and the productivity is up to 2.7 g/L per hour. The highest amount of-lactic acid produced from reducing sugars in xylitol byproducts is 106 g/L, the optical purity is over 99%, and the productivity is up to 2.08 g/L per hour. Thestrains XZL4 (DSM No. 23183) and XZL9 (DSM No. 23184) of the invention can directly utilize various reducing sugars in xylitol byproducts to produce high amounts of-lactic acid, which improves the production efficiency at low costs, and the strains are, thus, appropriate for industrial productions.