| Project/Area Number |
20550116
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Polymer chemistry
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| Research Institution | Kochi University of Technology |
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Principal Investigator |
TOSHIYUKI Uryu Kochi University of Technology, 工学部, 副学長 (80011005)
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| Co-Investigator(Kenkyū-buntansha) |
TAKASHI Yoshida 北見工業大学, 工学部, 副学長 (40166955)
小廣 和哉 高知工科大学, 工学部, 教授 (60170370)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | セルロース / 結晶領域セルロース / 高温高圧処理 / 水蒸気爆砕 / エタノール / 酸加水分解 / 結晶構造変化 / 酵素分解 / 結晶セルロース / オートクレーブ加水分解 / エタノール化 / グルコース / セロオリゴ糖 / 構造変化セルロース / ミクロクリスタリンセルロース / 加水分解 / 高温高圧水 / 遺伝子組換酵母 / 糖化 / アモルファスセルロース / 水素結合 / 木材含有糖鎖分子 |
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| Research Abstract |
A practical method to hydrolyze crystalline cellulose was found out. After crystalline cellulose suspension in water was heated at 260℃±10℃ in which temperature the hydrogen bond is weakened, it was steam-exploded. The obtained cellulose showed that hydrolysis occurred only at its surface. Mercerized cellulose showed the same phenomenon. For the crystalline cellulose converted into a different crystalline state, an acidic hydrolysis around 200℃ gave mono- and oligo-saccharide derivatives, indicating the occurrence of main-chain scission. The converted cellulose was easily hydrolyzed by enzymes into monoand oligo-saccharides.
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