A process for producing erythritol

Disclosed is a process for producing erythritol by cultivating microorganisms under aerobic conditions. An appropriate concentration of dissolved oxygen (i.e.: not less than 0,2 p.p.m.) is monitored. By means of a cell separating device (5) a clarified liquid is continuously withdrawn from the ferme...

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Bibliographic Details
Main Authors HATTORI, NOBUO, MAEDA, TOSHIHIRO, KAWAGUCHI, GAKU, HORIKITA, HIROYUKI, TAKAGI, YAHEI
Format Patent
LanguageEnglish
French
German
Published 19.07.1995
Edition4
Subjects
APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY
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
SPIRITS
VINEGAR
WINE
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Summary:Disclosed is a process for producing erythritol by cultivating microorganisms under aerobic conditions. An appropriate concentration of dissolved oxygen (i.e.: not less than 0,2 p.p.m.) is monitored. By means of a cell separating device (5) a clarified liquid is continuously withdrawn from the fermentation tank (1), whereas a limited fraction of the cells is allowed to bleed out of the fermentation system. The cell separator (5) may be arranged in an external loop or inside the fermentation tank (1). The process is monitored so as to maintain the cell concentration in the fermentation tank between 40 and 200 g/l (dry weight). The erythritol is recovered from said clarified liquid.
Bibliography:Application Number: EP19890300974