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:
May. 19, 2009
Filed:
Jan. 26, 2007
Yusuke Amino, Kawasaki, JP;
Kazuko Hirasawa, Kawasaki, JP;
Yusuke Amino, Kawasaki, JP;
Kazuko Hirasawa, Kawasaki, JP;
Ajinomoto Co., Inc., Tokyo, JP;
Abstract
To provide a process for producing monatin where steric configuration of 2-position is in an R configuration or a salt thereof by isomerization of 2-position of monatin where steric configuration of 2-position is in an S configuration. A process for producing monatin where steric configuration of 2-position is in an R configuration or a salt thereof, characterized in that, the process contains a step where isomerization reaction of 2-position of monatin in which steric configuration of 2-position is in an S configuration is carried out in a mixed solvent of water and organic solvent in the presence of an aldehyde and, after that, a step where monatin in which steric configuration of 2-position is in an R configuration or a salt is crystallized.