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Continuous fermentation process for the production of metabolities using a moving filter

  • US 5,688,674 A
  • Filed: 02/27/1996
  • Issued: 11/18/1997
  • Est. Priority Date: 09/29/1995
  • Status: Expired due to Fees
First Claim
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1. 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.

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