Method for the carrying out of a microbiological or enzymatic pr

Details Method for the carrying out of a microbiological or enzymatic pr Method for the carrying out of a microbiological or enzymatic pr

1985-11-12

1990-06-19

Nucker, Christine M.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

435 3, 435111, 435114, 435813, 435818, 435819, C12P 100, C12P 1904, C17P 1906, C12Q 300

Patent

active

049353489

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 regulated on the basis of the said measurement within critical limits.

REFERENCES:
patent: 2188192 (1940-01-01), Scholler et al.
patent: 3257362 (1966-06-01), Norwood
patent: 3630848 (1971-12-01), Lefrancois
patent: 3672953 (1972-06-01), Coty et al.
patent: 3847748 (1974-11-01), Gibson et al.
patent: 4025394 (1977-05-01), Young
patent: 4181576 (1980-01-01), Malick

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