| 摘要 |
Provided is a pretreated product for saccharification, obtained by a pretreatment alone which allows an efficient enzymatic saccharification treatment to thereby obtain a saccharified solution having a uniform quality. A pretreated product for saccharification where lignin 5 is dissociated or a substrate 1 is swollen is obtained by pretreating the substrate 1. The substrate 1 has 60 to 80% of the pores having a diameter of 10 to 50 nm. In a process for producing the pretreated product for saccharification, a substrate mixture obtained by mixing the substrate 1 and ammonia water is maintained at a predetermined temperature for a predetermined period of time to thereby separate a part of hemicellulose 4 having a molecular weight of 7.8�103 to 2.0�106. |
