| 木质纤维素原料的高沸点有机溶剂预处理 |
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| 引用本文： | 孙付保,娄秀平,杨玉春,洪嘉鹏,陈亚楠.木质纤维素原料的高沸点有机溶剂预处理[J].中国酿造,2011(12). |
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| 作者姓名： | 孙付保 娄秀平 杨玉春 洪嘉鹏 陈亚楠 |
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| 作者单位： | 1. 江南大学工业生物技术教育部重点实验室,江苏无锡214122江南大学糖化学与生物技术教育部重点实验室,江苏无锡214122
2. 江南大学工业生物技术教育部重点实验室,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金(20906041;21176106) |
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| 摘 要： | 针对小分子有机溶剂预处理时存在的不足,该文对高沸点有机溶剂预处理木质纤维素以提高其可酶解性进行了探索.以常见高沸点有机酸和醇进行汽爆麦草预处理时发现,酸比醇类的预处理作用强,但选择性没有醇类好；高沸点醇类在高温预处理汽爆麦草时,它的酶解率比低温时显著提高,由27％～35％提高为48％～54％,但纤维素明显发生降解,高沸醇预处理后纤维素含量为原汽爆麦草相应的85％～90％,其中甘油预处理选择性最好；原麦草经常压甘油预处理(T≥200℃)后纤维素保留在90％以上,基质酶解率可达70％.通过实验最终寻找到一种适合于构建常压有机溶剂预处理的高沸点溶剂-甘油,为构建新型有机溶剂预处理方法提供了希望.
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| 关 键 词： | 麦草 汽爆 有机溶剂预处理 甘油 酶解 |
Pretreatment of lignocellulose with high boiling point organic solvent |
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| SUN Fubao
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LOU Xiuping
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YANG Yuchun
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HONG Jiapeng
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CHEN Yanan.Pretreatment of lignocellulose with high boiling point organic solvent[J].China Brewing,2011(12). |
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| Authors: | SUN Fubao LOU Xiuping YANG Yuchun HONG Jiapeng CHEN Yanan |
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| Affiliation: | SUN Fubao1,2,LOU Xiuping1,YANG Yuchun1,HONG Jiapeng1,CHEN Yanan1(1.Key Laboratory of Industrial Biotechnology of Ministry of Education,Jiangnan University,Wuxi 214122,China,2.Key Laboratory of Carbohydrate Chemistry and Biotechnology of Ministry of Education,China) |
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| Abstract: | To improve drawbacks of pretreatment with small molecular organic solvent,the work proposed to pretreat lignocellulose with high-boiling point organic solvent for the increased enzymatic hydrolysis.Compared to steam exploded wheat straw with alcohols,the role of organic acids was stronger,but with more unsatisfactory selective effect.The enzymatic hydrolysis degree of pretreatment of steam exploded wheat straw with alcohols at high temperature significantly increased than that of at low temperature,which we... |
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| Keywords: | wheat straw steam explosion organic solvent pretreatment glycerol enzymatic hydrolysis |
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