Verfahren zur Herstellung von L-Carnitin aus Crotonobetain

摘要

The invention relates to a method for producing L(-)-carnitine. The aim of the invention is to depict a method which permits the synthesis of L(-)-carnitine from crotonobetaine, crotonobetaine salts or derivatives in an ecologically advantageous manner by immobilizing cells of Escherichia coli 044 K74 in a continuously operating cell recycle reactor. Growing or resting cells of E. coli are retained in a continuously operating cell recycle reactor by micro or ultrafiltration membranes which are arranged as a flat membrane module or hollow chamfer module.