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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 謝志誠 | |
| dc.contributor.author | Wei-Fan Huang | en |
| dc.contributor.author | 黃維凡 | zh_TW |
| dc.date.accessioned | 2021-06-08T06:20:23Z | - |
| dc.date.copyright | 2006-08-30 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-08-30 | |
| dc.identifier.citation | 參考文獻
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Ethanol from lignocellulosics: A review of the economy. Bioresource Technology 56:131-140. 49. Wright, J. D. 1998. Ethanol from biomass by enzymatic hydrolysis. Chem. Eng. Prog. 84:62-74. 50. Wyman, C. E. 1994. Ethanol from Lignocellulosic Biomass - Technology, Economics, and Opportunities. Bioresource Technology 50:3-16. 51. Xiao, Z. Z.; R. Storms; A. Tsang. 2004. Microplate-based filter paper assay to measure total cellulase activity. Biotechnology and Bioengineering 88:832-837. 52. Zheng, Y. Z.; H. M. Lin; G. T. Tsao. 1998. Pretreatment for cellulose hydrolysis by carbon dioxide explosion. Biotechnology Progress 14:890-896. 53. Zhu, S. D.; Y. X. Wu; Z. N. Yu; X. A. Zhang; C. W. Wang; F. Q. Yu; S. W. Jin; Y. F. Zhao; S. Y. Tu; Y. P. Xue. 2005. Simultaneous saccharification and fermentation of microwave/alkali pre-treated rice straw to ethanol. Biosystems Engineering 92:229-235. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25595 | - |
| dc.description.abstract | 本研究以稻殼為原料，探討利氫氧化鈉與硫酸，於不同溫度（30、60、90℃），不同濃度（0.25、0.2、0.15M）與不同前處理時間（20、40、60分鐘）等條件下進行前處理，先分析前處理後之水解液含還原糖之濃度，再利用纖維酵素水解脢，於pH值4.6、溫度50℃、酵素液濃度21U/mL、基質比1%等條件下就殘留之固體進行酵素水解；並探討前處理溫度、時間與酸濃度對於酵素水解轉換率之影響。研究結果發現：在前處理溫度90℃下，酸水解液中之還原醣濃度隨著酸濃度與前處理時間之增加而增加，鹼處理液則不然。經過0.25M之氫氧化鈉，於前處理溫度90℃、前處理時間60分鐘條件下前處理者，其後續之酵素水解效果最好，其總轉換率可達到80%。
關鍵字：乙醇、酸處理、鹼處理、稻殼、酵素水解。 | zh_TW |
| dc.description.abstract | Rice hull, a complex lignocellulosic material with high lignin and ash content, has the potential to serve as a low-cost feedstock for production of ethanol.
In this study, rice hull was pretreated by dilute NaOH and H2SO4 at different temperature (30, 60, 90°C) with different concentration(0.25, 0.2, 0.15 M) and different treatment time（20、40、60 minutes）. Reducing sugars in the hydrolyzate are analyzed. The solid residues were hydrolyzed by cellulase from Trichoderma reesei C2730 under conditions of pH(4.6), temperature (50℃), enzyme concentration (21U/mL) and enzyme to substrate ratio (1%). The effects of pretreatment time, temperature and acid/base concentration on enzymatic hydrolysis are studied. The effect of acid pretreatment is not obvious. Results show that alkaline pretreatment can enhance the saccharification. Pretreated rice hull hydrolyzed with Trichoderma reesei C2730 cellulase showed 80% sacchrification. Keywords: ethanol; acid pretreatment; alkaline pretreatment; rice hull; enzymatic hydrolysis | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T06:20:23Z (GMT). No. of bitstreams: 1 ntu-95-R93631010-1.pdf: 1167156 bytes, checksum: 26ae79709fd10fccffe8371dd3bb8705 (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | 目錄
誌謝 i 中文摘要 ii 英文摘要 iii 目錄 iv 圖目錄 vii 表目錄 x 第一章 前言 1 第二章 文獻探討 3 2-1 木質纖維素 3 2-2 生質乙醇製程 7 2-2-1 濃酸水解製程 7 2-2-2 稀酸水解製程 8 2-2-3 酵素水解製程 10 2-3 前處理 12 2-3-1機器粉碎 12 2-3-2裂解 13 2-3-3 高壓熱水處理法 13 2-3-4 蒸氣爆裂法 13 2-3-5 二氧化碳爆裂法 14 2-3-6 稀釋酸處理法 14 2-3-7 稀釋酸穿流處理法 15 2-3-8 氨水前處理法 15 2-3-9 石灰前處理法 15 2-4酵素水解 17 2-4-1 纖維水解脢 17 2-4-2 纖維水解脢之活性 18 2-4-3 影響酵素水解之因素 20 2-5醱酵 21 2-6 同步醣化與醱酵 22 2-7稻殼之應用 23 第三章 材料與方法 24 3-1 分析項目與方法 24 3-1-1 稻殼之組成 24 3-1-2 標準曲線之建立與水解液之分析 25 3-2 實驗藥品與設備 26 3-3 實驗方法 30 3-3-1 預備處理 30 3-3-2 鹼液前處理 30 3-3-3 酸液前處理 31 3-3-4 酵素水解 31 第四章 結果與討論 32 4-1 稻殼組成成份之分析 32 4-2 DNS標準曲線之建立 33 4-3 前處理 34 4-3-1 以NaOH前處理 34 4-3-1-1 前處理溫度之影響 34 4-3-1-2 NaOH濃度之影響 35 4-3-1-3 小結 36 4-3-2 以H2SO4前處理 36 4-3-2-1 前處理溫度之影響 36 4-3-2-2 H2SO4濃度之影響 37 4-3-2-3 小結 38 4-3-3 NaOH與H2SO4前處理之比較 38 4-4 酵素水解 41 4-4-1 無前處理之酵素水解 41 4-4-1-1水解時間之影響 41 4-4-1-2基質比之影響 42 4-4-2 以NaOH前處理後之酵素水解 44 4-4-2-1 NaOH濃度之影響 44 4-4-2-2 前處理時間之影響 46 4-4-2-3 前處理溫度之影響 49 4-4-3 以H2SO4前處理後之酵素水解 50 4-4-3-1 H2SO4濃度之影響 50 4-4-3-2 前處理時間之影響 52 4-4-3-3 前處理溫度之影響 55 4-4-4 有無前處理之比較 56 第五章 結論 59 參考文獻 60 | |
| dc.language.iso | zh-TW | |
| dc.subject | 酸處理 | zh_TW |
| dc.subject | 乙醇 | zh_TW |
| dc.subject | 稻殼 | zh_TW |
| dc.subject | 鹼處理 | zh_TW |
| dc.subject | 酵素水解 | zh_TW |
| dc.subject | enzyme | en |
| dc.subject | acid | en |
| dc.subject | alcohol | en |
| dc.subject | alkali | en |
| dc.subject | hydrolysis | en |
| dc.subject | rice hull | en |
| dc.title | 以前處理提升稻殻纖維素水解效率之研究 | zh_TW |
| dc.title | Using Acid and Alkali Pretreatment (rice hulls) to Enhance Cellulase Hydrolysis Efficiency | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 周楚洋,李允中,陳世銘 | |
| dc.subject.keyword | 乙醇,酸處理,鹼處理,稻殼,酵素水解, | zh_TW |
| dc.subject.keyword | alcohol,acid,alkali,rice hull,enzyme,hydrolysis, | en |
| dc.relation.page | 65 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2006-08-30 | |
| dc.contributor.author-college | 生物資源暨農學院 | zh_TW |
| dc.contributor.author-dept | 生物產業機電工程學研究所 | zh_TW |
| 顯示於系所單位： | 生物機電工程學系 | |
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