METHOD FOR MANUFACTURE OF DEXTRAN, DEXTRAN SOLUTION OBTAINED, AND USES
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Jun 18, 2012
filing date -
Aug 1, 2011
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Abandoned
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Abstract
Microbiological method of production of a dextran solution, according to which a culture medium containing sucrose is inoculated with a preculture of a bacterial strain that is able to produce dextran, then the dextran solution obtained at the end of fermentation is recovered directly, without a subsequent concentration step, characterized in that:—before inoculation, the culture medium contains at least 10 wt. % of sucrose,—after inoculation, sucrose is added again in conditions such that the total amount of sucrose in the medium, including that present before inoculation, is at least 16 wt. %,—the dextran solution obtained contains at least 10 wt. % of dextran. The native solution of dextran obtained and use of the solution as a flocculant.
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