| abstract |
When a sugar solution derived from cellulose-containing biomass is concentrated and purified by a nanofiltration membrane or a reverse osmosis membrane, it can be filtered without clogging the membrane due to biomass-derived solids. [MEANS FOR SOLVING PROBLEMS] An enzyme saccharified solution derived from a cellulose-containing biomass is purified by using a porous microfiltration membrane having a specific average pore size, then a nanofiltration membrane and / or a reverse osmosis membrane, and sugars. A method for producing a liquid and an apparatus for producing a sugar liquid are provided. [Selection figure] None |