| 摘要 |
PROBLEM TO BE SOLVED: To provide a pretreatment method performed before enzymatic hydrolysis of herbaceous biomass, wherein the pretreatment for enzymatic hydrolysis of herbaceous biomass suppresses excessive decomposition of sugar generated by the pretreatment, requires no high pressure device and for obtaining the sugar at a low cost and a good yield, to provide an ethanol production method using herbaceous biomass as the raw material, and to provide an ethanol production method using palm hollow bunch as the raw material. SOLUTION: The pretreatment method performed before enzymatic hydrolysis of herbaceous biomass comprises an alkali treatment step for alkali-treating with a hydroxide aqueous solution containing a hydroxide of sodium hydroxide, potassium hydroxide or calcium hydroxide, whose concentration is≥0.2 wt.% but <1 wt.%. COPYRIGHT: (C)2009,JPO&INPIT
|
