| Project/Area Number |
05680484
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
環境保全
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| Research Institution | Kanazawa University |
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Principal Investigator |
SAWADA Tatsuro Kanazawa University, Faculty of Engineering, Professor, 工学部, 教授 (80019728)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIKAWA Hidenori Kanazawa University, Faculty of Engineering, Assistant, 工学部, 助手 (70232262)
NAKAMURA Yoshitoshi Kanazawa University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (20172455)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Environment Preservation / Waste / Alcohol Fermentation / New Material |
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| Research Abstract |
Steam explosion is one of the effective pretreatment methods for the utilization of plant and animal wastes. Effects of steam explosion on the modification of plant and animal wastes were atudied experimentally. Wastes were treated with high-pressure steam (2.55,3.04,3.53 and 4.51 MPa) for 0.5-20 min. The exploded product was separated into water-soluble hemicellulose, holocellulose, methanol-soluble lignin and Klason lignin. The effects of steam explosion on the characteristics of the exploded product were studied from experimental data on pH,amounts of extractive components and enzymatic saccharification. The enzymatic saccharification increased with increasing amounts of methanol-soluble lignin, and was affected by the pore size distribution. New pores for enzymatic saccharification were formed with a variety of diameters in the exploded product by the steam explosion. The enzymatic hydrolysis and ethanol productivity were compared in two cultures : a liquid culture of enzymatic saccharification and fermentation in two steps, and a simultaneous culture of saccharification and fermentation. From the results of these cultures, it was confirmed that the simultaneous culture of saccharification and fermentation was the most effective for producing alchol from the exploded product. The lignin epoxy resin was synthesized from methanolsoluble lignin of exploded product. It was found that the lignin epoxy resin was more easily heat hardened and heat stable than the epoxy resin of bisphenol A.
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