METHOD FOR REMOVING BACTERIA FROM A FERMENTATION BROTH
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United States of America Patent
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Issued Date -
May 13, 2010
app pub date -
Nov 7, 2005
filing date -
Nov 15, 2004
priority date (Note) -
Abandoned
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Abstract
The invention relates to method for the stepwise removal of bacteria from a fermentation broth. According to said method, the bacteria in the fermentation broth are mixed with a retention promoter mixture in a first process step and the pretreated bacteria are removed by precoat filtration in a second process step. The inventive method uses a retention promoter mixture from bentonite and polycations such as PEI or polyDADMAC and is suitable for treating large quantities of bacteria. The filter cake obtained with bentonite/PEI has a substantially improved quality.
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