METHOD OF PRODUCING SUGAR SOLUTION Russian patent published in 2020 - IPC C12P19/14 B01D61/14 B01D65/02 C13K1/02 

FIELD: technological processes.

SUBSTANCE: disclosed is a method of producing sugar-containing liquid obtained from cellulose-containing biomass. Method comprises (a) fermentative saccharification of a pretreatment product having lignin content of 1 % to 8.5 %, obtained from pretreatment of cellulose-containing biomass to obtain saccharified fluid; (b) filtering the saccharified liquid obtained in step (a), directly through a microfiltration membrane selected from a group consisting of a hollow fiber membrane, a tubular membrane and a flat membrane, with provision of formation of filtration sediment layer on membrane surface from supply side with simultaneous production of sugar-containing liquid on side of abducting permeate; and (c) collecting a layer of a filter cake formed on the surface of the membrane at step (b) by peeling it from the membrane.

EFFECT: invention ensures production of sugar-containing liquid with reduced turbidity.

10 cl, 1 dwg, 7 tbl, 15 ex