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中文摘要：
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（1ignin—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。
英文摘要：
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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