METHOD FOR PRODUCING SUCCINIC ACID

La présente invention concerne des procédés de production d'acide succmique et/ou d'ions succînate par fermentation en conditions anaérobies. Producing succinic acid by anaerobic fermentation of a carbon source with an Escherichia colistrain comprises a first stage in which carbon dioxide...

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Bibliographic Details
Main Authors CALANDE, OLIVIER, VARLAMOFF, CAROLINE, SEGUEILHA, LAURENT, DEHAY, FREDERIC
Format Patent
LanguageEnglish
French
Published 02.07.2009
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
SPIRITS
VINEGAR
WINE
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Summary:La présente invention concerne des procédés de production d'acide succmique et/ou d'ions succînate par fermentation en conditions anaérobies. Producing succinic acid by anaerobic fermentation of a carbon source with an Escherichia colistrain comprises a first stage in which carbon dioxide is supplied in an amount dependent on its consumption by the strain and, before total exhaustion of the carbon source, a second step in which the remaining carbon source is fermented without supplying carbon dioxide so as to consume residual carbon dioxide. An independent claim is also included for producing succinic acid by anaerobic fermentation with an Escherichia colistrain in the presence of carbon dioxide while adding a magnesium compound to the fermentation medium to adjust the pH, where the resulting magnesium succinate is then converted to succinic acid.
Bibliography:Application Number: CA20082709326