BIOCATALYST, METHOD OF ITS PREPARATION AND METHOD OF OBTAINING GLUCOSE-FRUCTOSE SYRUPS Russian patent published in 2008 - IPC C12P19/24 C12N11/04 

FIELD: chemistry.

SUBSTANCE: biocatalyst for obtaining glucose-fructose syrups in process of isomerization of glucose or fructose, which contains bacterial cells with glucose isomerase activity, silicon dioxide and salts of magnesium and divalent cobalt, ratio of bacterial cells and silicon dioxide being from 1:6 to 1:10 in weight fractions by dry substances. Silicon dioxide is used in form of hydro-gel with the following set of properties: humidity 60-95%, value of specific surface of product, obtained after hydro-gel drying at 105-120°C, equals 30-550 m²/g, bulk density of product, obtained after hydro-gel drying at 105-120°C, equals 0.1-0.7 g/cm³.

EFFECT: acceleration and simplification of process of immobilisation of bacterial cells, possessing glucose isomerase activity, preservation of fermentative activity of cells at high level after immobilisation.

10 cl, 13 ex, 3 tbl