METHOD OF REMOVING ACETONE-BUTYL-ALCOHOL FERMENTATION INHIBITORS FROM HYDROLYSATES OF LIGNOCELLULOSE MATERIAL Russian patent published in 2015 - IPC C12N1/22 C12N1/20 C12P7/06 C12P7/16 

FIELD: chemistry.

SUBSTANCE: invention relates to the hydrolysis industry, particularly methods of removing acetone-butyl-alcohol fermentation inhibitors from hydrolysates of lignocellulose material, and can be used in preparing culture media for producing biethanol, biobutanol and acetone. The method includes treating hydrolysates with a group of microorganisms, wherein the consortium of microorganisms used is active sludge from sewage treatment facilities which is pre-adapted to a growth substrate based on substances which inhibit acetone-butyl-alcohol fermentation. The method employs active sludge from urban sewage treatment facilities, the bacterial component of which is represented by Pseudomonas (64%), Bacillus (18%), Zooglea (7%), Micrococcus (5%), Chromobacterium (3%), Acinetobacter (2%) and Citrobacter (1%) bacteria. The method also employs active sludge from sewage treatment facilities of pig-breeding farms, the bacterial component of which is represented by Nocardia (35%), Rhodococcus (28%), Micrococcus (18%), Pseudomonas (13%) and Bacillus (6%) bacteria.

EFFECT: invention eliminates inhibiting factors in the process of fermentation of hydrolysates of lignocellulose material, enables to avoid corrosion of the hydrolysis equipment and enables to optimise the microbial culture.

3 cl, 4 ex