离子液体微乳液预浸渍对桉木酶解效率的影响

doi:10.3969/j.issn.1000-565X.2015.06.005

华南理工大学学报（自然科学版） ›› 2015, Vol. 43 ›› Issue (6): 30-36.doi: 10.3969/j.issn.1000-565X.2015.06.005

离子液体微乳液预浸渍对桉木酶解效率的影响

杨仁党李龙杨飞^†

华南理工大学制浆造纸工程国家重点实验室，广东广州 510640

收稿日期:2015-01-07 修回日期:2015-04-07 出版日期:2015-06-25 发布日期:2015-05-04
通信作者: 杨飞(1978-)，男，博士，副研究员，主要从事生物质预处理，特种纸和造纸化学品研究． E-mail:yangfei@scut.edu.cn
作者简介:杨仁党(1967-)，男，博士，教授，主要从事加工纸与特种纸、植物资源综合利用新技术(生物质能源、纸浆模塑)的研究． E-mail: rdyang@ scut． edu． cn
基金资助:
国家“十二五”科技支撑计划项目(2013BAC01B03);华南理工大学中央高校基本科研业务费专项资金资助项目(2014ZZ0062)

Effect of Preimpregnation with Ionic Liquid Microemulsion on Enzymolysis Efficiency of Eucalyptus

Yang Ren-dang Li Long Yang Fei

State Key Laboratory of Pulp and Paper Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China

Received:2015-01-07 Revised:2015-04-07 Online:2015-06-25 Published:2015-05-04
Contact: 杨飞(1978-)，男，博士，副研究员，主要从事生物质预处理，特种纸和造纸化学品研究． E-mail:yangfei@scut.edu.cn
About author:杨仁党(1967-)，男，博士，教授，主要从事加工纸与特种纸、植物资源综合利用新技术(生物质能源、纸浆模塑)的研究． E-mail: rdyang@ scut． edu． cn
Supported by:
Supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China during the“12th Five-Year Plan”(2013BAC01B03)

摘要/Abstract

摘要： 研究了碱强化的离子液体微乳液(DILMS)体系的配比、浸渍方式及处理条件对速生阔叶材桉木酶解效率的影响，探讨了浸渍处理后原料残渣和浸渍液中单糖含量的变化，并利用离子色谱法对单位质量底物的葡萄糖增加比进行定量分析．实验结果表明:适宜的 DILMS 浸渍工艺参数为 100℃、8h、底物目数 40(即直径 180 ～380μm)，进一步结合碱强化的乙二胺浸渍工序(70℃，3h)而形成的“两步法”预浸渍可以使单位质量底物中葡萄糖占总还原糖的百分比由 64． 33%上升到 96． 34%，酶解得率由 35． 8% 上升到 83． 2%，葡萄糖实际产量提高了 1． 11 倍．研究表明碱强化的离子液体微乳液具有优良的预浸渍处理效果．

关键词: 双离子液体, 微乳液, 乙二胺, 酶解, 桉木

Abstract: The effects of the composition，impregnation mode and treatment condition of alkali-strengthened DILMS (Double Ionic Liquid Microemulsion) on the enzymatic hydrolysis efficiency of eucalyptus were discussed，and the variation of monose content in the residue and the impregnation liquid was analyzed． Moreover，the increment of glucose in the enzymatic hydrolysis process was quantitatively investigated by means of the ion chromatography． Finally，suitable DILMS impregnation conditions，that is，a temperature of 100 ℃，an impregnation duration of 8 h and a substrate size of 40 meshes (namely a diameter of 180 ～380μm)，were determined． Experimental results indicate that，by using the alkali-strengthened quadrol (70℃，3h) impregnation with the DILMS preimpregnation，the glucose proportion in the total reducing sugar increases from 64. 33% to 96. 34%，the enzymatic hydrolysis efficiency improves from 35. 8% to 83. 2%，the actual yield of glucose is 2. 11 times that of the untreated raw mate-rial． It is thus concluded that the alkali-strengthened DILMS is effective in improving the preimpregnation efficiency．

Key words: double ionic liquid, microemulsion, quadrol, enzymatic hydrolysis, eucalyptus

中图分类号:

S216

杨仁党李龙杨飞. 离子液体微乳液预浸渍对桉木酶解效率的影响[J]. 华南理工大学学报（自然科学版）, 2015, 43(6): 30-36.

Yang Ren-dang Li Long Yang Fei. Effect of Preimpregnation with Ionic Liquid Microemulsion on Enzymolysis Efficiency of Eucalyptus[J]. Journal of South China University of Technology (Natural Science Edition), 2015, 43(6): 30-36.

离子液体微乳液预浸渍对桉木酶解效率的影响

Effect of Preimpregnation with Ionic Liquid Microemulsion on Enzymolysis Efficiency of Eucalyptus

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