| 纤维素酶水解棕榈壳制取乙醇研究 |
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| 引用本文： | 张 宇,许敬亮,王 琼,徐明忠,庄新姝,李 东,袁振宏.纤维素酶水解棕榈壳制取乙醇研究[J].农业工程学报,2008,24(10):186-189. |
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| 作者姓名： | 张 宇 许敬亮 王 琼 徐明忠 庄新姝 李 东 袁振宏 |
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| 作者单位： | 1. 中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,广州,510640;中国科学院研究生院,北京,100039
2. 中国科学院广州能源研究所,中国科学院可再生能源与天然气水合物重点实验室,广东省新能源和可再生能源研究开发与应用重点实验室,广州,510640 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金，中国科学院基金 |
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| 摘 要： | 先将棕榈壳置于多功能水解反应器中于200℃,4.0 MPa,液固比15∶1,搅拌转速500 r/min条件下纯水预处理5 min,半纤维素和纤维素含量分别从21.74%,45.42%变为2.35%,47.63%,再以一定比例混合预处理液与棕榈壳残渣,研究液固比,温度,加酶量和时间对棕榈壳糖化工艺的影响,结果表明液固比为16∶1最合适,低温37℃比高温50℃更有利于棕榈壳的糖化,从长时间看,加酶量并不完全与原料转化率成正相关,以小于10 FPU/g为宜。糖化效果取决于β-葡萄糖苷酶对葡萄糖的耐受性以及预处理效果。采用酿酒酵母对糖化液发酵,乙醇得率为77%。通过电镜扫描发现,预处理与酶解后的残渣的结构比原料明显疏松,长条状晶束结构有着不同的程度的破坏,但木质素结构破坏较小。
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| 关 键 词： | 葡萄糖 乙醇 糖化 棕榈壳 纤维素酶 |
| 收稿时间： | 2007/3/10 0:00:00 |
| 修稿时间： | 7/2/2007 12:00:00 AM |
Saccharification of palm shell by cellulase to produce ethanol |
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| Zhang Yu,Xu Jingliang,Wang Qiong,Xu Mingzhong,Zhuang Xinshu,Li Dong and Yuan Zhenhong.Saccharification of palm shell by cellulase to produce ethanol[J].Transactions of the Chinese Society of Agricultural Engineering,2008,24(10):186-189. |
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| Authors: | Zhang Yu Xu Jingliang Wang Qiong Xu Mingzhong Zhuang Xinshu Li Dong and Yuan Zhenhong |
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| Institution: | 1.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China,1.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China,1.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China,1.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China;2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China and Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences;Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences;New and Renewable Energy Key Laboratory of Guangdong Province,Guangzhou 510640,China |
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| Abstract: | |
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| Keywords: | glucose ethanol saccharification palm shell cellulose |
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