Continuous fermentation process for the production of metabolities using a moving filter
AssigneeCha-Yong Choi
InventorsCha-Yong Choi, Young-Lyeol Yang
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Abstract
A metabolite, e.g., ethanol, is continuously produced from low cost carbohydrate substrates by a process which comprises pulverizing the carbohydrate substrate; liquefying and saccharifying the pulverized substrate; continuously fermenting the lique-saccharified substrate in a fermentor equipped with a moving filter, in the presence of flocculent biological cells maintained at a concentration ranging from 90 to 160 g/l by using the moving filter and a culture medium to produce a fermentation product mixture; and recovering the desired metabolite from the fermentation product mixture.
Claims15
A continuous process for producing a metabolite from a carbohydrate substrate which comprises the steps of:
- (A) pulverizing the carbohydrate substrate;
- (B) liquefying and saccharifying the pulverized substrate;
- (C) continuously fermenting the lique-saccharified substrate in a fermentor, in the presence of biological cells and a culture medium to produce a fermentation product mixture;
- and (D) recovering the metabolite from the fermentation product mixture;
- wherein the fermentor is equipped with a moving filter having an opening size ranging from 50 to 2,000 mesh and the biological cells are flocculent cells maintained at a concentration ranging from 90 to 160 g/l by the moving filter during the fermentation step.
Dependencies are inferred from the claim text.