Improving methane production from Pennisetum hybrid by monitoring plant height and ensiling pretreatment

doi:10.1016/j.renene.2019.03.084

	Improving methane production from Pennisetum hybrid by monitoring plant height and ensiling pretreatment
	Zhang, Yi 1,2,4; Li, Lianhua 1,2,3,4; Kang, Xihui 1,2,4; Sun, Yongming 1,2,3; Yuan, Zhenhong 1,2,3,5; Xing, Tao 1,2,3; Lin, Richen 6
刊名	RENEWABLE ENERGY
	2019-10-01
卷号	141 页码:57-63
关键词	Pennisetum hybrid biomass Plant height Ensiling Lactobacillus bacteria Anaerobic digestion Methane
ISSN号	0960-1481
DOI	10.1016/j.renene.2019.03.084
通讯作者	Li, Lianhua(lilh@ms.giec.ac.cn) ; Lin, Richen(richen.lin@ucc.ie)
英文摘要	The biomass of grass-based Pennisetum hybrid commonly use for a biogas production via anaerobic digestion. However, it is necessary to determine a method to optimize the plant harvest time for high biogas production. Moreover, ensiling of biomass in the presence of diverse microbes may offer a solution to improve biogas production. In this study, whole plant of Pennisetum biomass (including stems and leaves) was collected at different harvesting time (plant heights of 70, 100, 150 cm), and then comparatively assessed for further ensiling and biogas production. Compared to leaves, stems exhibited a significant linear relationship (R-2 = 0.99) with whole plants in terms of ensiling quality (i.e. pH and NH3-N). Microbial analysis further revealed that Lactobacillus was the dominant bacterial genus during ensiling of stems and whole plants, with the highest relative abundance of 50.08% obtained at the height of 100 cm. Ensiling of biomass at a height of 100 cm achieved the best digestion performance, with the methane yields of 316 +/- 20 mL/g VS for leaves, 361 +/- 43 mL/g VS for stems, and 356 +/- 28 mL/g VS for whole plants. A harvesting time at the plant height of 100 cm was the optimal from the silage quality and anaerobic digestion performance. (C) 2019 Published by Elsevier Ltd.
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 Program of Guangzhou[201707010201] ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant[797259]
WOS关键词	ANAEROBIC-DIGESTION PERFORMANCE ; BIOGAS PRODUCTION ; FERMENTATIVE HYDROGEN ; CHEMICAL-COMPOSITION ; SILAGE QUALITY ; ENERGY CROPS ; SP NOV. ; YIELD ; DIGESTIBILITY ; MICROALGAE
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000472241100007
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 ; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25178]
专题	中国科学院广州能源研究所
通讯作者	Li, Lianhua; Lin, Richen
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 5.Collaborat Innovat Ctr Biomass Energy, Zhengzhou 450000, Henan, Peoples R China 6.Univ Coll Cork, MaREI Ctr, Environm Res Inst, Cork, Ireland
推荐引用方式 GB/T 7714	Zhang, Yi,Li, Lianhua,Kang, Xihui,et al. Improving methane production from Pennisetum hybrid by monitoring plant height and ensiling pretreatment[J]. RENEWABLE ENERGY,2019,141:57-63.
APA	Zhang, Yi.,Li, Lianhua.,Kang, Xihui.,Sun, Yongming.,Yuan, Zhenhong.,...&Lin, Richen.(2019).Improving methane production from Pennisetum hybrid by monitoring plant height and ensiling pretreatment.RENEWABLE ENERGY,141,57-63.
MLA	Zhang, Yi,et al."Improving methane production from Pennisetum hybrid by monitoring plant height and ensiling pretreatment".RENEWABLE ENERGY 141(2019):57-63.