木质纤维素

Based on the experimental results reported in literature, the dissolution and separation performance of ionic liquids for lignin, cellulose and hemicellulose are summarized. The relationship between structure of ionic liquids and their dissolution performance is analyzed, and the possible dissolution mechanism is discussed.

根据目前所报道的研究结果，总结了不同离子液体对木质素、纤维素、半纤维素的溶解作用以及对木质纤维素的分离性能，分析了离子液体的结构与其溶解性能的关系，讨论了可能的溶解机理。

In this paper, after a brief introduction for the composition and structure of lignin, cellulose, hemicellulose and room-temperature ionic liquids, the recent progress in dissolution and separation of lignocellulose with ionic liquids is reviewed.

本文在介绍木质素、纤维素、半纤维素和相关室温离子液体的组成与结构的基础上，综述了室温离子液体在溶解、分离木质纤维素方面的研究进展。

It's first reported the researches about the synergism between expansin which is a potential swelling factor and hydrolytic enzymes of lignocellulose.

本论文首次对纤维素膨胀因子候选者expansin与木质纤维素多糖水解酶的协同作用机制进行了研究。

Based on reviewing key techniques for bioethanol production from lignocellulose, advantages and disadvantages of various physical, chemical and biological pretreatments, along with the latest methods, were analyzed. Moreover, the characteristics of many kinds of microbes, such as their thermotolcrance and ability of pentose's usage, and the widely-used fermentation modes are also summarized in this review to provide some new ideas for ethanol production from lignocellulose.

本文在综述国内外纤维素乙醇生产关键步骤的基础上，着重分析了各种物理、化学和生物预处理的优缺点以及新兴的预处理思路，归纳了各类纤维素乙醇生产菌的特点，包括耐高温和五碳糖的利用，并介绍了当前主要的发酵方式和优化措施，以期为木质纤维素生产乙醇提供新的研究思路。

The results also showed that there was a synergistic effect between xylanase and cellulase in the enzymatic saccharification of lignocelluosic materials.

研究结果还表明木聚糖酶和纤维素酶具有协同酶解木质纤维素的作用。

Lmt.The characteristics and novelty in this dissertation was obvious in the following aspects: cofermentation of glucose and xylose to ethanol by recombinant yeast S. cerevisiae ZU-10, ethanol production from hydrolysates of cellulose and hemicellulose in corn stover by recombinant yeast S. cerevisiae ZU-10, and integration of key technologies in ethanol production from lignocellulosic biomass. These results were meaningful not only in academic research, also in utilization of renewable lignocellulosic biomass, decreasing the production cost of fuel ethanol , and alleviating the world grain crisis.

本文在基因重组酵母对葡萄糖和木糖的共发酵、利用基因重组酵母厌氧条件下发酵玉米秸秆纤维素和半纤维素水解液生产乙醇、以及利用木质纤维原料生产乙醇的关键技术集成等方面的研究具有明显的特色与创新，相关研究结果不仅有一定的学术价值，而且在促进可再生木质纤维素资源的转化利用、缓解人类的粮食危机、降低燃料乙醇的生产成本等方面具有重要的现实意义。

This article summarized domestic and foreign has lived the physical resources pretreatment renewably to the lignocellulose the research development, and lived the material pretreatment technology and the application prospect renewably to the lignocellulose has carried on the forecast.

综述了国内外对木质纤维素可再生生物质资源预处理的研究进展，并对木质纤维素可再生生物质的预处理技术和应用前景进行了展望。

In-depth studies were carried out on the extracellular·OH scavenging effect of white rot fungus with various media conditions in the dynamic degrading process of lignocellulose, and on the correlation between·OH scavenging and lignocellulose degradation. The·OH scavenging efficiency of A3 reached 45%~50% significantly during biodegrading process.

对不同白腐菌、丝状真菌及细菌的木质纤维素基质液体培养体系，进行胞外·OH清除能力比较研究，结果表明：体系·OH清除能力在白腐菌类群中较为普遍，相对于细菌、丝状真菌等常见微生物群落则是较独特的，该能力与菌株木质纤维素降解机制及能力相关，受底物基质营养构成状况影响。

Lignocellulose is the most abundant biomass in the world, its two major components, cellulose and hemicellulose, are composed of hexoses and pentoses, therefore, lignocellulosic biomass can be a very good feedstock for producing bioethanol and biohydrogen by some microorganisms via fermentation.

木质纤维素是地球上量最丰富的生质物，其所含的纤维素和半纤维素由六碳醣和五碳醣组成，因此若能将木质纤维素分解醣化，它正是用微生物以发酵的方式生产乙醇或氢气的最佳原物料。

Measurement of Ligninolysis The delignification of a solid lignocellulosic substrate is often assessed by the simple procedure of removing its low molecular weight components by extraction, weighing the leftover woody residue, degrading the remaining polysaccharide component with strong acid, and then reweighing the leftover insoluble lignin, which is chemically modified and referred to as Klason lignin.

木质素降解的测量对固体的木质纤维素基片进行去木质反应之前，先要进行一个简单的步骤，即，用萃取去除低分子量的成分，称重剩余木质残渣，用强酸降解剩余的多糖成分，称重剩余的不可溶木质素，这种木质素已经从化学成分上被改变，并被称为克拉森木质素。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。