PRETREATMENT METHOD FOR CELLULOSE-CONTAINING BIOMASS, PRODUCTION METHOD FOR SACCHARIFYING BIOMASS COMPOSITION, AND SUGAR PRODUCTION METHOD
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United States of America Patent
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Issued Date -
Nov 12, 2015
app pub date -
Nov 19, 2013
filing date -
Dec 13, 2012
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Abstract
A pretreatment method (1) for improving saccharification performance of a cellulose-containing biomass as a saccharification starting material, which includes: step 1 of pulverizing cellulose-containing biomass; step 2 of subjecting the pulverized cellulose-containing biomass to hydrothermal treatment; and step 3 of finely pulverizing the cellulose-containing biomass subjected to the hydrothermal treatment. The fine pulverization in step 3 is performed by using a refiner or disc mill provided with a plate or disc without a flow passage leading from a center toward a circumferential direction. Also disclosed is (2) a method for producing a biomass composition for saccharification, which includes conducting the pretreatment method; and (3) a method for producing a sugar, which includes hydrolyzing a biomass composition for saccharification obtained by the production method.
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