O-04　液化アンモニアによるソルガム構成成分の分離回収技術

抄録

To produce biofuels and biochemicals from biomass, the separation and recovery method of chemical components from biomass is important. In this study, a separation and recovery method using liquefied ammonia (NH₃(l)) was proposed. To evaluate the effectiveness of NH₃(l) treatment for biochemical conversion of biomass, sorghum biomass was treated using NH₃(l) and saccharified using enzyme cocktails. NH₃(l) treatment greatly dewatered from sorghum sample. NH₃(l) selectively extracted organic acids which are used as a feedstock of chemicals. In contrast, neutral sugars which are used as fermentation substrates remained in solid part without over-decomposition after NH₃(l) treatment. The NH₃(l) treated sample had been easily hydrolyzed using enzyme cocktails. These results indicate that NH₃(l) treatment is a promising method for the removing water and recovering chemical components from biomass.