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. 17, 2001
Filed:
Jun. 22, 2000
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a method of producing [S,S]-ethylenediamine-N,N′-disuccinate wherein a microorganism having malate isomerase activity or matter processed therefrom and a microorganism having ethylenediamine-N,N′-disuccinate ethylenediamine lyase activity or matter processed therefrom are allowed to act on a substrate solution containing maleic acid, maleic anhydride, or a maleic acid salt, and ethylenediamine, in the presence of at least one metal ion selected from the group consisting of alkaline earth metals, iron, zinc, copper, nickel, aluminum, titanium and manganese. The present invention enables to accumulate [S,S]-ethylenediamine-N,N′-disuccinate in a higher yield and at a high concentration within a reaction system using maleic acid as a raw material.