| 磨木木素在硫酸盐法蒸煮过程中的反应 |
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| 引用本文： | 邵震宇,谢益民,周燕,杨志勇.磨木木素在硫酸盐法蒸煮过程中的反应[J].黑龙江造纸,2008,36(4). |
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| 作者姓名： | 邵震宇 谢益民 周燕 杨志勇 |
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| 作者单位： | 1. 山东轻工业学院,制浆造纸科学与技术教育部重点实验室,山东,济南,250353
2. 潍坊科技职业学院化学工程学院,寿光,262700 |
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| 基金项目： | 国家自然科学基金资助项目
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山东省优秀中青年科学家奖励基金资助项目
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| 摘 要： | 在木糖存在的条件下,采用硫酸盐法蒸煮的方法对蓝花楹磨木木素(milled wood lignin,简称MWL)进行处理,然后对处理后的产物进行红外光谱和13C-NMR分析,研究蓝花楹MWL的结构变化,探讨在硫酸盐法蒸煮过程中木素-碳水化合物复合体(lignin-carbohydrate complexes,简称LCC)的形成情况。研究发现:蓝花楹MWL结构单元之间的α-烷基芳基醚键、β-O-4型连接键很容易发生断裂,而在这些连接键发生断裂的同时,形成的木素中间体与糖产生化学键的结合,蒸煮液中有新的LCC结构形成。
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| 关 键 词： | 木素-碳水化合物复合体 磨木木素 木糖 硫酸盐法蒸煮 |
The Degradation and Condensation of Lignin Structure During Kraft Cooking of MWL and Xylose |
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| SHAO Zhen-yu,XIE Yi-min,ZHOU Yan,YANG Zhi-yong.The Degradation and Condensation of Lignin Structure During Kraft Cooking of MWL and Xylose[J].Heilongjiang Pulp & Paper,2008,36(4). |
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| Authors: | SHAO Zhen-yu XIE Yi-min ZHOU Yan YANG Zhi-yong |
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| Affiliation: | 1;Key Lab of Paper Science and Technology of Ministry of Education;Shandong Institute of Light Industry;Ji'nan;Shandong Province;250353;2;Weifang Science and Technology Vocational College;Shouguang;262700 |
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| Abstract: | In order to investigate the degradation and condensation of milled wood lignin(MWL) from Jacaranda copaia after cooked by kraft method in existence of xylose. The analysis of FT-IR and 13C-NMR were used to analyze the structure of the products from kraft cooking. The results indicated that the lignin linkages were easy to be cleaved by kraft cooking, especially α-aryl ether linkages and β-O-4 linkages. New LCC structures were found during the breaking of lignin linkages. The newly formed LCC come from the condensation of lignin and xylose. |
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| Keywords: | LCC MWL xylose kraft cooking |
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