Process to avoid inhibition of acetogens by CO

A process is provided for fermenting CO-containing gaseous substrates. The process is effective for decreasing lag times and maintaining a culture in steady state by controlling CO concentration and minimizing effects of high or low CO concentrations during fermentation. The process includes providi...

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Bibliographic Details
Main Author SENARATNE RYAN
Format Patent
LanguageEnglish
Published 17.03.2015
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS OR TEST PAPERS THEREFOR
CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES
ENZYMOLOGY
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROCESSES OF PREPARING SUCH COMPOSITIONS
SEPARATION
SPIRITS
TRANSPORTING
VINEGAR
WINE
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Summary:A process is provided for fermenting CO-containing gaseous substrates. The process is effective for decreasing lag times and maintaining a culture in steady state by controlling CO concentration and minimizing effects of high or low CO concentrations during fermentation. The process includes providing syngas to a first fermentation zone, fermenting the syngas, and determining a CO concentration in a fermentation medium in the first fermentation zone. If the CO concentration in fermentation medium in the first fermentation zone has a calculated value of about 0.12 mM or greater, then at least a portion of the syngas being provided to the first fermentation zone is provided to one or more subsequent fermentation zones in an amount effective for providing a calculated CO concentration in any subsequent fermentation zone of about 0.12 mM or less.
Bibliography:Application Number: US201314018487