Using low temperature to balance enzymatic saccharification and furan formation during SPORL pretreatment of Douglas-fir
文献类型：期刊论文
| 作者 | Zhang, C.1,2; Houtman, C. J.2; Zhu, J. Y.2 |
| 刊名 | process biochemistry
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 49期号:3页码:466-473 |
| 关键词 | Low temperature pretreatment Enzymatic hydrolysis/saccharification Sugar degradation/inhibitor formation Kinetics Combined severity/hydrolysis factor Woody biomass |
| 英文摘要 | comparing analytical results for sulfite pretreatment to overcome the recalcitrance of lignocelluloses (sporl) of douglas-fir (pseudotsuga menziesii) at two different temperatures shows that the apparent activation energy of sugar degradation is higher than that of hemicellulose hydrolysis, approximately 161 kj/mole versus 100 kj/mole. thus, one can balance the production of degradation products against hemicellulose hydrolysis and therefore the enzymatic saccharification efficiency of the resultant substrate by changing pretreatment temperature and duration. specifically, pretreatment at 165 degrees c for 75 min significantly reduced furan formation compared with the pretreatment at 180 degrees c for 30 min while maintaining the same pretreatment severity and therefore the same substrate enzymatic digestibility (sed). obtaining high sed with douglas-fir is also limited by lignin content. fortunately, the bisulfite in sporl provides delignification activity. by combining kinetic models for hemicelluloses hydrolysis, sugar degradation, and delignification, the performance of pretreatment can be optimized with respect to temperature, duration, acid, and bisulfite loading. the kinetic approach taken in this study is effective to design viable low temperature pretreatment processes for effective bioconversion of lignocelluloses. published by elsevier ltd. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; technology |
| 类目[WOS] | biochemistry & molecular biology ; biotechnology & applied microbiology ; engineering, chemical |
| 研究领域[WOS] | biochemistry & molecular biology ; biotechnology & applied microbiology ; engineering |
| 关键词[WOS] | cellulosic ethanol-production ; dilute-acid hydrolysis ; lodgepole pine ; overcome recalcitrance ; sulfite pretreatment ; severity parameter ; energy efficiency ; bioconversion ; fermentation ; biomass |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334482300016 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145881]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian, Peoples R China 2.US Forest Serv, USDA, Forest Prod Lab, Madison, WI 53705 USA |
| 推荐引用方式 GB/T 7714 | Zhang, C.,Houtman, C. J.,Zhu, J. Y.. Using low temperature to balance enzymatic saccharification and furan formation during SPORL pretreatment of Douglas-fir[J]. process biochemistry,2014,49(3):466-473. |
| APA | Zhang, C.,Houtman, C. J.,&Zhu, J. Y..(2014).Using low temperature to balance enzymatic saccharification and furan formation during SPORL pretreatment of Douglas-fir.process biochemistry,49(3),466-473. |
| MLA | Zhang, C.,et al."Using low temperature to balance enzymatic saccharification and furan formation during SPORL pretreatment of Douglas-fir".process biochemistry 49.3(2014):466-473. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。