METHOD FOR ENZYMATIC SACCHARIFICATION TREATMENT OF LIGNOCELLULOSE-CONTAINING BIOMASS, AND METHOD FOR PRODUCING ETHANOL FROM LIGNOCELLULOSE-CONTAINING BIOMASS

摘要

PROVIDED IS A METHOD FOR THE ENZYMATIC SACCHARIFICATION TREATMENT OF A LIGNOCELLULOSE-BASED RAW MATERIAL, IN WHICH A LIGNOCELLULOSE-BASED RAW MATERIAL WHICH HAS BEEN SUBJECTED TO A PRETREATMENT FOR MAKING THE RAW MATERIAL APPROPRIATE FOR AN ENZYMATIC SACCHARIFICATION REACTION, IS ADDED TOGETHER WITH AN ELECTROLYTE CONTAINING A WATER-SOLUBLE SALT, TO CELLULOSE SACCHARIFICATION ENZYME-CONTAINING WATER; THE LIGNOCELLULOSE-BASED RAW MATERIAL AS A RAW MATERIAL SUSPENSION WHOSE ELECTRICAL CONDUCTIVITY HAS BEEN ADJUSTED TO 5 MS/CM TO 25 MS/CM, IS SUBJECTED TO AN ENZYMATIC SACCHARIFICATION TREATMENT THROUGH AN ENZYMATIC SACCHARIFICATION REACTION; THE REACTION PRODUCT AND AN ENZYME-CONTAINING SOLUTION ARE SEPARATED AND RECOVERED FROM THE TREATED SUSPENSION AFTER THE ENZYMATIC SACCHARIFICATION TREATMENT; AND THE RECOVERED ENZYME-CONTAINING SOLUTION IS RECYCLED AS AN ENZYME FOR THE ENZYMATIC SACCHARIFICATION TREATMENT PROCESS. FIG. 1