pretreatment method for cellulose-containing biomass, production method for saccharifying biomass composition and sugar production method

摘要

patent summary: "pretreatment method for cellulose-containing biomass, production method for saccharifying biomass composition and sugar production method". The present invention provides: [1] A pretreatment method that enhances the saccharification performance of a cellulose-containing biomass as a saccharification feedstock and includes a step (1) wherein the cellulose-containing biomass is pulverized. a step (2) wherein the pulverized cellulose-containing biomass is hydrothermally treated; and a step (3) wherein the hydrothermally treated cellulose-containing biomass is finely pulverized, said pretreatment method wherein, in step (3), the fine pulverization is performed using a refiner or shredder. disc fitted with a plate or disc without a passage through the center thereof in the circumferential direction; [2] a production method for a saccharifying biomass composition, said production method in which the aforementioned pretreatment method is implemented; and [3] a sugar production method in which the saccharifying biomass composition obtained using the above production method is subjected to hydrolysis.