Thermo-chemical pretreatment and enzymatic hydrolysis for enhancing saccharification of catalpa sawdust

被引：38

作者：

Jin, Shuguang ^{[1
]}

Zhang, Guangming ^{[2
]}

Zhang, Panyue ^{[1
]}

Li, Fan ^{[1
]}

Fan, Shiyang ^{[1
]}

Li, Juan ^{[1
]}

机构：

[1] Beijing Forestry Univ, Beijing Key Lab Source Control Technol Water Poll, Beijing 100083, Peoples R China

[2] Renmin Univ China, Sch Environm & Resource, Beijing 100872, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 205卷

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Catalpa sawdust; Thermo-chemical pretreatment; Ca(OH)(2); Enzymatic hydrolysis; Lignocellulosic biomass; DILUTE-ACID PRETREATMENT; CORN STOVER; ETHANOL-PRODUCTION; LIME PRETREATMENT; LIGNOCELLULOSIC BIOMASS; CHEMICAL PRETREATMENTS; STRUCTURAL FEATURES; REDUCING SUGAR; DIGESTIBILITY; STRAW;

D O I：

10.1016/j.biortech.2016.01.019

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

To improve the reducing sugar production from catalpa sawdust, thermo-chemical pretreatments were examined and the chemicals used including NaOH, Ca(OH)(2), H2SO4, and HCl. The hemicellulose solubilization and cellulose crystallinity index (CrI) were significantly increased after thermo-alkaline pretreatments, and the thermo-Ca(OH)(2) pretreatment showed the best improvement for reducing sugar production comparing to other three pretreatments. The conditions of thermo-Ca(OH)(2) pretreatment and enzymatic hydrolysis were systematically optimized. Under the optimal conditions, the reducing sugar yield increased by 1185.7% comparing to the control. This study indicates that the thermo-Ca(OH)(2) pretreatment is ideal for the saccharification of catalpa sawdust and that catalpa sawdust is a promising raw material for biofuel. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：34 / 39

页数：6

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