| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Ionic liquid treatment with 1-ethyl-3-methylimidazolium acetate ([Emim]Ac) was studied as pre-treatment method of glucose production from cellulose in Japanese softwood. In spite of high lignin content in the mixtures, the yields of glucose liberated from the mixtures by enzymatic saccharification were higher than that of untreated wood. Mixtures were analyzed by X-ray diffraction for cellulose crystal structure. It was suggested that cellulose crystal structures were changed by [Emin]Ac treatment. Recycling process of [Emim]Ac was conducted by the active carbon treatment and freeze-drying. The small amount of dissolved materials hardly had an influence on the enzyme saccharification, but the residual water in ionic liquid had a great influence on that.
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