A Steam-Explosion-Based Hydrolysis and Acidification Technology for Cornstalk Bioconversion

doi:10.1007/s12155-018-9945-9

	A Steam-Explosion-Based Hydrolysis and Acidification Technology for Cornstalk Bioconversion
	Wang, Lan 1; Liu, Yang 1,2; Chen, Hongzhang1
刊名	BIOENERGY RESEARCH
	2019-03-01
卷号	12 期号:1 页码:103-111
关键词	Steam explosion Hydrolysis and acidification Process regulation Cornstalk
ISSN号	1939-1234
DOI	10.1007/s12155-018-9945-9
英文摘要	Acidification is a potential solution to lignocellulose conversion. In this work, steam explosion was proposed to pretreat cornstalk and improve acidification bioconversion efficiency. Results showed that steam explosion improved the conversion ratio by 17% compared with the control group. The optimum temperature of the hydrolysis and acidification system was 50 degrees C and the microbial community showed higher hydrolysis and acidification efficiency at pH 8.0-9.0, which were 66.0% (pH 8.0) and 68.0% (pH 9.0), respectively. An organic nitrogen source was more preferred by the microbial community than an inorganic nitrogen source. The highest conversion ratio (67.0%) was observed when the yeast extract dose was 1.0 g/L. Steam-exploded cornstalk was degraded by the microbial community, and organic acids in hydrolysis and acidification liquid was effectively reused by R. eutropha H16 (The utilization ratios of acetic acid, propionic acid and butyric acid were 53.38, 12.27 and 20.95%, respectively.). Based on this study, steam-explosion-based conversion technology is proposed and has great potential in future application of lignocellulose conversion.
资助项目	Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences)[XDA 21060300] ; Special Project of Cultivation and Development of Innovation Base of Beijing[Z171100002217003] ; Equipment Project of the State Key Laboratory of Biochemical Engineering[Y826051101]
WOS关键词	ENZYMATIC-HYDROLYSIS ; ORGANIC-ACIDS ; BIOMASS ; PH ; FRACTIONATION ; FERMENTATION ; BIOETHANOL ; LIGNIN
WOS研究方向	Energy & Fuels ; Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000464768000009
资助机构	Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences) ; Special Project of Cultivation and Development of Innovation Base of Beijing ; Equipment Project of the State Key Laboratory of Biochemical Engineering
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28308]
专题	中国科学院过程工程研究所
通讯作者	Chen, Hongzhang
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing Key Lab Biomass Refining Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lan,Liu, Yang,Chen, Hongzhang. A Steam-Explosion-Based Hydrolysis and Acidification Technology for Cornstalk Bioconversion[J]. BIOENERGY RESEARCH,2019,12(1):103-111.
APA	Wang, Lan,Liu, Yang,&Chen, Hongzhang.(2019).A Steam-Explosion-Based Hydrolysis and Acidification Technology for Cornstalk Bioconversion.BIOENERGY RESEARCH,12(1),103-111.
MLA	Wang, Lan,et al."A Steam-Explosion-Based Hydrolysis and Acidification Technology for Cornstalk Bioconversion".BIOENERGY RESEARCH 12.1(2019):103-111.