Enhanced the enzymatic hydrolysis efficiency of wheat straw after combined steam explosion and laccase pretreatment
文献类型：期刊论文
| 作者 | Qiu, Weihua; Chen, Hongzhang
|
| 刊名 | BIORESOURCE TECHNOLOGY
 |
| 出版日期 | 2012-08-01 |
| 卷号 | 118期号:0页码:8-12 |
| 关键词 | Laccase Steam explosion Enzymatic hydrolysis Selective degradation of lignin |
| ISSN号 | 0960-8524 |
| 通讯作者 | Chen, HZ |
| 英文摘要 | Laccase, capable of selectively degrading lignin while keeping cellulose intact, has been widely applied for the modification and bio-bleaching of pulp. In this study Sclerotium sp. laccase (MSLac) was employed in combination with steam explosion to evaluate the effect of this treatment on cellulose hydrolysis. Combined steam explosion with laccase pretreatment enhanced the cellulose conversion rate of wheat straw no matter in the case of successive (MSLac-Cel) and simultaneous (MSLac+Cel) MSLac and cellulase hydrolysis. The highest cellulose conversion rate of 84.23% was obtained when steam-exploded wheat straw (SEWS) (1.3 MPa, 5 min) was treated by MSLac+Cel at a laccase loading of 0.55 U g(-1) substrate. FT-IR and SEM analyses indicated that MSLac oxidized the phenol and changed electron configuration of the ring, which contributed to loosening the compact wrap of lignin-carbohydrate complex and consequently enhancing the enzymatic hydrolysis efficiency of cellulose. This article provided a promising method for lignocellulose bio-pretreatment. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 研究领域[WOS] | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 关键词[WOS] | BIOETHANOL PRODUCTION ; DELIGNIFICATION ; FERMENTATION ; TECHNOLOGIES ; SOFTWOOD ; XYLANASE ; FIBERS ; SYSTEM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000307259600002 |
| 公开日期 | 2013-10-14 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3211]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Weihua,Chen, Hongzhang. Enhanced the enzymatic hydrolysis efficiency of wheat straw after combined steam explosion and laccase pretreatment[J]. BIORESOURCE TECHNOLOGY,2012,118(0):8-12. |
| APA | Qiu, Weihua,&Chen, Hongzhang.(2012).Enhanced the enzymatic hydrolysis efficiency of wheat straw after combined steam explosion and laccase pretreatment.BIORESOURCE TECHNOLOGY,118(0),8-12. |
| MLA | Qiu, Weihua,et al."Enhanced the enzymatic hydrolysis efficiency of wheat straw after combined steam explosion and laccase pretreatment".BIORESOURCE TECHNOLOGY 118.0(2012):8-12. |
入库方式： OAI收割
来源：过程工程研究所
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