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	Enhanced anaerobic ruminal degradation of bulrush through steam explosion pretreatment
	Yue, Zheng-Bo1; Liu, Rong-Hua1; Yu, Han-Qing1; Chen, Hong-Zhang2; Yu, Bin2; Harada, Hideki3; Li, Yu-You3
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2008-08-20
卷号	47期号:16页码:5899-5905
关键词	enzymatic-hydrolysis wheat-straw corn stover optimization acidogenesis fermentation digestion cellulose biomass growth
ISSN号	0888-5885
其他题名	Ind. Eng. Chem. Res.
中文摘要	Steam explosion was employed as a bulrush pretreatment process in the subsequent anaerobic fermentation by rumen microorganisms. The effects of steam pressure, moisture content, and residence time on the pretreatment efficiency were investigated by using response surface methodology and Box-Behnken design. The product formation rate (R(max)) and specific product formation potential (P(s)) were respectively selected as the response. A maximum R(max) of 0.485 g chemical oxygen demand (COD)/L center dot d was obtained at a moisture content of 18%, a steam pressure of 1.6 MPa, and a residence time of 8 min, while a maximum P(s) of 0.432 g COD/g bulrush was achieved at a moisture content of 20%, a steam pressure of 1.8 MPa and a residence time of 8 min. Batch kinetics analysis shows that increases by approximately 140% in R(max) and approximately 20% in biodegradability (P(s)) were obtained, compared with the untreated bulrush under the optimum conditions. Ultraviolet (UV) analysis indicates that the soluble carbohydrate-lignin compounds or lignin fragments increased after steam explosion. Breakage of rigid lignin structure was confirmed by Fourier transform infrared spectroscopy analysis. X-ray photoelectron spectroscopy analysis shows that the ratio of oxygen to carbon atoms increased from 0.206 to 0.286, and that the relative abundance of C2 and C3 in Cls spectra increased from 27.4 to 28.7 and 8.9 to 13.8, respectively. This demonstrates the partial removal of lignin and wax from the surface of bulrush through steam explosion.
英文摘要	Steam explosion was employed as a bulrush pretreatment process in the subsequent anaerobic fermentation by rumen microorganisms. The effects of steam pressure, moisture content, and residence time on the pretreatment efficiency were investigated by using response surface methodology and Box-Behnken design. The product formation rate (R(max)) and specific product formation potential (P(s)) were respectively selected as the response. A maximum R(max) of 0.485 g chemical oxygen demand (COD)/L center dot d was obtained at a moisture content of 18%, a steam pressure of 1.6 MPa, and a residence time of 8 min, while a maximum P(s) of 0.432 g COD/g bulrush was achieved at a moisture content of 20%, a steam pressure of 1.8 MPa and a residence time of 8 min. Batch kinetics analysis shows that increases by approximately 140% in R(max) and approximately 20% in biodegradability (P(s)) were obtained, compared with the untreated bulrush under the optimum conditions. Ultraviolet (UV) analysis indicates that the soluble carbohydrate-lignin compounds or lignin fragments increased after steam explosion. Breakage of rigid lignin structure was confirmed by Fourier transform infrared spectroscopy analysis. X-ray photoelectron spectroscopy analysis shows that the ratio of oxygen to carbon atoms increased from 0.206 to 0.286, and that the relative abundance of C2 and C3 in Cls spectra increased from 27.4 to 28.7 and 8.9 to 13.8, respectively. This demonstrates the partial removal of lignin and wax from the surface of bulrush through steam explosion.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	ENZYMATIC-HYDROLYSIS ; WHEAT-STRAW ; CORN STOVER ; OPTIMIZATION ; ACIDOGENESIS ; FERMENTATION ; DIGESTION ; CELLULOSE ; BIOMASS ; GROWTH
收录类别	SCI
原文出处	://WOS:000258400300015
语种	英语
WOS记录号	WOS:000258400300015
公开日期	2013-10-08
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/2901]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100080, Peoples R China 3.Tohoku Univ, Dept Civil Engn, Sendai, Miyagi 9808579, Japan
推荐引用方式 GB/T 7714	Yue, Zheng-Bo,Liu, Rong-Hua,Yu, Han-Qing,et al. Enhanced anaerobic ruminal degradation of bulrush through steam explosion pretreatment[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2008,47(16):5899-5905.
APA	Yue, Zheng-Bo.,Liu, Rong-Hua.,Yu, Han-Qing.,Chen, Hong-Zhang.,Yu, Bin.,...&Li, Yu-You.(2008).Enhanced anaerobic ruminal degradation of bulrush through steam explosion pretreatment.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,47(16),5899-5905.
MLA	Yue, Zheng-Bo,et al."Enhanced anaerobic ruminal degradation of bulrush through steam explosion pretreatment".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 47.16(2008):5899-5905.

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