FERMENTATION PROCESSES WITH REDUCED FOAMING

摘要

The present invention relates to processes of producing a fermentation product from readily fermentable sugar-material in a fermentation vat comprising a fermentation medium, comprising: feeding the readily fermentable sugar-material into the fermentation vat comprising a slurry of fermenting organism; fermenting the readily fermentable sugar material into a desired fermentation product, wherein protease is added during or after feeding of the readily fermentable sugar-material into fermentation vat or during fermentation of the readily fermentable sugar-material into the desired fermentation product. The invention also related to the use of protease for reducing foaming in the fermentation yells generating by the fermenting organism during fermentation of the readily fermentable sugar-material.

主权项

1. A process of producing a fermentation product from readily fermentable sugar-material in a fermentation vat comprising a fermentation medium using a fermenting organism, comprising
i) feeding the readily fermentable sugar material into the fermentation vat comprising a slurry of fermenting organism; ii) fermenting the readily fermentable sugar material into a desired fermentation product,wherein a protease is added
a) before, during and/or after feeding in step i), and/or b) during fermentation in step ii).