PRODUCTION OF FERMENTABLE SUGARS AND LIGNIN FROM BIOMASS USING SUPERCRITICAL FLUIDS Russian patent published in 2016 - IPC D21C3/22 

FIELD: biotechnology.

SUBSTANCE: invention relates to a method for increasing the level of glucose produced from lignocellulose biomass, and product made using the said method. Method for increasing the level of glucose produced from lignocellulose biomass involves fabrication of a fractionated biomass, which contains the first solid fraction of cellulose and insoluble lignin; and the first liquid fraction; mixing of the above solid fraction with water for production of a suspension; optional preliminary heating of the said suspension to a temperature below the critical temperature of water; contact of the said suspension with the second reaction fluid medium, during which there is formed the second solid fraction containing insoluble lignin; and the second liquid fraction containing saccharide, selected from a group of cellooligosaccharades, glucose and mixtures thereof; wherein the said second reaction fluid contains water and, optionally, carbon dioxide, while the said second reaction fluid medium has a temperature and pressure above the critical point of water and carbon dioxide; and reduction of the temperature of the above mentioned reaction mixture to a temperature below the critical temperature of water; and an optional hydrolysis of the said second liquid fraction for production of glucose.

EFFECT: higher efficiency of biomass conversion from renewable resources and/or wastes in more valuable products.

27 cl, 7 ex, 3 tbl, 15 dwg