Patent ID: 6261798
Filing Date: 2001-07-17
Classification: C12P

Abstract:
A method of producing [S,S]- ethylenediamine-N, N'-disuccinate wherein a microorganism having malate isomerase activity or matter having malate isomerase activity processed from said microorganism and a microorganism having ethylenediamine-N, N'- disuccinate ethylenediamine lyase activity or matter having ethylenediamine-N, N'-disuccinate ethylenediamine lyase activity processed from said microorganism 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 ions, obtaining [S,S]- ethylenediamine-N, N'-disuccinate.