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1. (WO2017178426) MAGNESIUM LACTATE FERMENTATION PROCESS

Pub. No.:    WO/2017/178426    International Application No.:    PCT/EP2017/058547
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Tue Apr 11 01:59:59 CEST 2017
IPC: C12P 7/56
Applicants: PURAC BIOCHEM BV
Inventors: KALBASENKA, Aliaksei
BOKHOVE, Jeroen
Title: MAGNESIUM LACTATE FERMENTATION PROCESS
Abstract:
The invention pertains to a fermentation process for producing magnesium lactate from a carbon source comprising the steps of - providing a fermentation medium comprising a fermentable carbon source in a fermentation reactor, - fermenting the fermentation medium by means of a lactic acid producing microorganism in the presence of an alkaline magnesium salt to provide a fermentation broth comprising magnesium lactate, and - recovering solid magnesium lactate from the magnesium lactate containing fermentation broth, wherein during at least 40% of the operating time of the fermentation process, the concentration of solid magnesium lactate in the fermentation broth is maintained in the range of 5-40 vol.%, calculated as solid magnesium lactate crystals on the total of the fermentation broth. The process of the invention allows stable operation at high productivity, in combination with efficient product separation.