C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
195/139, 195/143
C12M 1/36 (2006.01) B01J 19/18 (2006.01) C12M 1/02 (2006.01) C12M 1/08 (2006.01) C12P 7/58 (2006.01) C12P 19/06 (2006.01)
Patent
CA 1301101
ABSTRACT To improve the yield and/or reduce the energy cost in carrying out a microbiological or enzymatic process in a reactor and to make the reaction conditions essentially independent of the size of the reactor, it is proposed to make use, as a reactor, of an endless circulation tube in which the reaction components are circulated essentially according to a plug flow and in this process are fed through one or more in-line mixers fitted inside the tube. This method and reactor are suitable in particular for the preparation by fermentation of polysaccharides, especially xanthan, in which water, a production medium containing one or more sugars and nutrient salts and an inoculating material of a suitable aerobic bacterium are introduced into the said reactor tube and exposed to fermentation with air being supplied. Preferably the concentration of a reaction component or a value derived therefrom is measured at at least one point and the reaction velocity is regu- lated on the basis of the said measurement within critical limits.
495294
Koerts Kees
Oosterhuis Nicolaas Marius Gerard
Cooperatieve Vereniging Suiker Unie U.a.
Hirons Brown & Orange
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