Acetic acid consuming strain
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United States of America Patent
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Aug 16, 2022
Grant Date -
Aug 27, 2020
app pub date -
Sep 25, 2018
filing date -
Sep 26, 2017
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Abstract
The invention describes a process for the production of ethanol from a composition comprising glucose and between 50 μM and 100 mM acetic acid, said process comprising fermenting said composition in the presence of a recombinant yeast which is capable to convert acetic acid anaerobically; maintaining the amount of undissociated acetic acid at a value of at least 50 μM; and recovering the ethanol. Said process is useful for both starch and cellulosic based, acetic acid containing hydrolysates and advantageously results in a greater consumption of acetic acid and thus higher ethanol yields.
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