木质素磺酸镁对不同纤维素原料酶解的影响机制

doi:10.11949/j.issn.0438-1157.20170170

化工学报 ›› 2017, Vol. 68 ›› Issue (8): 3275-3281.DOI: 10.11949/j.issn.0438-1157.20170170

木质素磺酸镁对不同纤维素原料酶解的影响机制

任继巍¹, 刘蕾², 钱子俊¹, 张一瞳², 欧阳嘉^2,3

1 南京林业大学林学院, 江苏南京 210037;
2 南京林业大学化学工程学院, 江苏南京 210037;
3 林木遗传与生物技术省部共建教育部重点实验室, 江苏南京 210037

收稿日期:2017-02-22 修回日期:2017-04-23 出版日期:2017-08-05 发布日期:2017-08-05
通讯作者: 欧阳嘉
基金资助:
国家自然科学基金项目（51561145015）；江苏省高校自然科学研究重大项目（16KJA220004）；江苏省高校优势学科建设工程资助项目（PAPD）。

Influence mechanism of magnesium lignosulfonates on enzymatic hydrolysis of different cellulose materials

REN Jiwei¹, LIU Lei², QIAN Zijun¹, ZHANG Yitong², OUYANG Jia^2,3

1 College of Forestry, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
2 College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China;
3 Key Laboratory of Forest Genetics and Biotechnology of Ministry of Education, Nanjing Forestry University, Nanjing 210037, Jiangsu, China

Received:2017-02-22 Revised:2017-04-23 Online:2017-08-05 Published:2017-08-05
Supported by:
supported by the National Natural Science Foundation of China (51561145015), the Major Natural Science Research Program of Jiangsu Higher Education Institutions (16KJA220004) and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

摘要/Abstract

摘要：

为探讨木质素磺酸镁作为辅助添加剂在纤维原料酶解过程的作用机制，以两种木质素磺酸镁为研究对象，考察了不同来源木质素磺酸镁组构差异及其在不同纤维原料酶解过程中的作用。研究发现，商品木质素磺酸镁较自制木质素磺酸镁具有更高的磺化度，但自制木质素磺酸镁具有更高总羟基相对含量。商品木质素磺酸镁和自制木质素磺酸镁对微晶纤维素酶解均有促进作用；对于木质纤维原料酶解，两种木质素磺酸镁对水热法预处理物料均有抑制作用。对亚硫酸氢镁预处理物料酶解，仅低浓度的自制木质素磺酸镁表现出促进作用。该研究为解释木质素磺酸镁对纤维素原料酶解的影响机制提供了理论依据。

关键词: 木质素磺酸镁, 纤维素, 酶解, 表面活性剂, 生物质, 生物乙醇

Abstract:

In order to investigate the influence mechanism of magnesium lignosulfonates as assisted additives on enzymatic of cellulose hydrolysis, two kinds of magnesium lignosulfonates from different materials were selected to study the fabric differences and influences on enzymatic hydrolysis of different lignocellulose materials. It could be found that commercial magnesium lignosulfonate had higher sulfonation degree than homemade magnesium lignosulfonate, but ML had higher total hydroxy related content. Both commercial magnesium lignosulfonate and homemade magnesium lignosulfonate could enhance the enzymatic hydrolysis of Avicel. For enzymatic hydrolysis of lignocellulose material, two kinds of lignosulfonates showed inhibit influences on wheat straw pretreated by liquid hot water pretreatment. Only low concentration homemade magnesium lignosulfonate indicated the positive influence on wheat straw pretreated by magnesium bisulfite pretreatment. This study provided the theoretical references for explanation on influence mechanism of magnesium lignosulfonates on enzymatic hydrolysis.

Key words: magnesium lignosulfonate, cellulose, enzymatic hydrolysis, surfactants, biomass, biofuel

中图分类号:

TQ353.6

任继巍, 刘蕾, 钱子俊, 张一瞳, 欧阳嘉. 木质素磺酸镁对不同纤维素原料酶解的影响机制[J]. 化工学报, 2017, 68(8): 3275-3281.

REN Jiwei, LIU Lei, QIAN Zijun, ZHANG Yitong, OUYANG Jia. Influence mechanism of magnesium lignosulfonates on enzymatic hydrolysis of different cellulose materials[J]. CIESC Journal, 2017, 68(8): 3275-3281.

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木质素磺酸镁对不同纤维素原料酶解的影响机制

Influence mechanism of magnesium lignosulfonates on enzymatic hydrolysis of different cellulose materials

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