Dilute sulfuric acid cycle spray flow-through pretreatment of corn stover for enhancement of sugar recovery

被引：60

作者：

Yan, Lishi ^{[1
]}

Zhang, Hongman ^{[2
]}

Chen, Jingwen ^{[1
]}

Lin, Zengxiang ^{[1
]}

Jin, Qiang ^{[1
]}

Jia, Honghua ^{[1
,3
]}

Huang, He ^{[1
,3
]}

机构：

[1] Nanjing Univ Technol, Coll Life Sci & Pharm, Nanjing 210009, Peoples R China

[2] Nanjing Univ Technol, Dept Appl Chem, Nanjing 210009, Peoples R China

[3] Jiangsu Prov Innovat Ctr Ind Biotechnol, Nanjing 211816, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Pretreatment; Cycle spray; Enzymatic digestibility; Xylose; Corn stover; COMPRESSED-HOT-WATER; ENZYMATIC-HYDROLYSIS; LIGNIN REMOVAL; HEMICELLULOSE; DIGESTIBILITY; STRAW; XYLAN;

D O I：

10.1016/j.biortech.2008.10.001

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A cycle spray flow-through reactor was designed and used to pretreat corn stover in dilute sulfuric acid medium. The dilute Sulfuric acid cycle spray flow-through (DCF) process enhanced xylose sugar yields and cellulose digestibility while increasing the removal of lignin. Within the DCF system, the xylose sugar yields of 90-93% could be achieved for corn stover pretreated with 2% (w/v) dilute sulfuric acid at 95 degrees C during the optimal reaction time (90 min). The remaining solid residue exhibited enzymatic digestibility of 90-95% with cellulase loading of 60 FPU/g glucan that was due to the effective lignin removal (70-75%) in this process. Compared with flow-through and compress-hot water pretreatment process, the DCF method produces a higher sugar concentration and higher xylose monomer yield. The novel DCF process provides a feasible approach for lignocellulosic material pretreatment. (C) 2008 Published by Elsevier Ltd.

引用

页码：1803 / 1808

页数：6

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