| abstract |
To provide a sugar production method capable of producing sugar at a sufficiently high saccharification rate using woody biomass as a raw material under relatively mild conditions. The present invention relates to a method for producing sugar from a woody biomass containing lignin, cellulose and hemicellulose, wherein the woody biomass is crushed to obtain a crushed biomass having a diameter of 10 mm or less; A steaming step in which water, a water-soluble organic solvent, and an organic acid are immersed in a chemical solution to boil the pulverized biomass; a soluble component in the pulverized biomass dissolved in the chemical solution; and an insoluble component in the pulverized biomass that is insoluble in the chemical solution It is the manufacturing method of saccharide | sugar provided with the isolation | separation process which isolate | separates, and the saccharification process of saccharifying by making an insoluble component contact an enzyme. [Selection figure] None |