| abstract |
【Task】 Provided is a method for producing a xylose sugar solution with a small amount of fermentation inhibitor from xylan-containing biomass. [Solution] A method for producing a xylose sugar solution from xylan-containing biomass, (1) Hydrothermally treating xylan-containing biomass to obtain a hydrothermally treated product, (2) adding a saccharification enzyme to the hydrothermally treated product, further adding a microorganism that does not assimilate xylose, and obtaining a saccharification and fermentation broth; (3) The saccharification and fermentation broth was subjected to solid-liquid separation using at least a microfiltration membrane, and the obtained filtrate was filtered through a nanofiltration membrane and / or a reverse osmosis membrane, and concentrated and purified from a non-permeate. A method for producing a xylose sugar solution comprising the step of obtaining a xylose solution. [Selection] Figure 1 |