Enhanced methane production from anaerobic digestion of hybrid Pennisetum by selectively removing lignin with sodium chlorite

doi:10.1016/j.biortech.2019.122289

	Enhanced methane production from anaerobic digestion of hybrid Pennisetum by selectively removing lignin with sodium chlorite
	Kang, Xihui 1,2,3,4; Zhang, Yi 1; Li, Lianhua 1,4; Sun, Yongming 1,2,3; Kong, Xiaoying 1,2,3; Yuan, Zhenhong 1
刊名	BIORESOURCE TECHNOLOGY
	2020
卷号	295 页码:7
关键词	Lignin removal Energy crop Pretreatment Anaerobic digestion Energy balance
ISSN号	0960-8524
DOI	10.1016/j.biortech.2019.122289
通讯作者	Sun, Yongming(sunym@ms.giec.ac.cn)
英文摘要	To enhance the biodegradability and methane production of hybrid Pennisetum, a pretreatment method with high selectivity for lignin removal, namely sodium chlorite/acetic acid (SCA) pretreatment, was examined in this work. Results showed that SCA pretreatment can selectively remove lignin with minimal impact on cellulose and hemicellulose. After up to 200 min of SCA treatment, 79.4% of lignin was removed and over 90% of the holo-cellulose was retained. The physicochemical changes after pretreatment were analyzed by confocal laser scanning microscopy, X-ray diffractometer and Fourier transform infrared spectroscopy, showing that the majority of lignin was removed from secondary cell walls and cell middle lamella while the chlorite-resistant lignin remained in the cell corner. Lignin removal significantly enhanced the biodegradability from 59.6% to 86.4% and increased methane production by 38.3%. Energy balance showed that SCA pretreatment was efficient to increase the energy output of hybrid Pennisetum.
资助项目	National Natural Science Foundation of China[51776208] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Science and Technology Planning Project of Guangdong Province[2017A050501049] ; Science and Technology Planning Project of Guangdong Province[2017B020238005] ; Science and Technology Program of Guangzhou[201707010201] ; Agricultural Technology Research and Development Project of Guangdong Province[2018LM2178]
WOS关键词	BIOGAS PRODUCTION ; MECHANICAL PRETREATMENT ; LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; PHENOLIC-COMPOUNDS ; ENERGY YIELD ; CO-DIGESTION ; RICE STRAW ; DELIGNIFICATION ; FERMENTATION
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000499718900048
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Science and Technology Planning Project of Guangdong Province ; Science and Technology Program of Guangzhou ; Agricultural Technology Research and Development Project of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25999]
专题	中国科学院广州能源研究所
通讯作者	Sun, Yongming
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Kang, Xihui,Zhang, Yi,Li, Lianhua,et al. Enhanced methane production from anaerobic digestion of hybrid Pennisetum by selectively removing lignin with sodium chlorite[J]. BIORESOURCE TECHNOLOGY,2020,295:7.
APA	Kang, Xihui,Zhang, Yi,Li, Lianhua,Sun, Yongming,Kong, Xiaoying,&Yuan, Zhenhong.(2020).Enhanced methane production from anaerobic digestion of hybrid Pennisetum by selectively removing lignin with sodium chlorite.BIORESOURCE TECHNOLOGY,295,7.
MLA	Kang, Xihui,et al."Enhanced methane production from anaerobic digestion of hybrid Pennisetum by selectively removing lignin with sodium chlorite".BIORESOURCE TECHNOLOGY 295(2020):7.