Anaerobic fermentation of hybridPennisetummixed with fruit and vegetable wastes to produce volatile fatty acids

doi:10.1039/d0ra04400h

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	Anaerobic fermentation of hybridPennisetummixed with fruit and vegetable wastes to produce volatile fatty acids
	Xing, Tao 1,2,3,4; Yu, Shutai 5; Zhen, Feng 1,2,3; Kong, Xiaoying 1,2,3; Sun, Yongming 1,2,3
	2020-09-09
关键词	Fermentation Fruits VegetablesAlkaline conditions Anaerobic fermentation Anaerobic fermentation process Fruit and vegetable waste Initial conditions Maximum selectivity Neutral conditions Volatile fatty acids (VFAs)
卷号	10
期号	55
DOI	10.1039/d0ra04400h
页码	33261-33267
英文摘要	The production of volatile fatty acids (VFAs)viaanaerobic fermentation is a new technology that provides a high-value utilization of biomass. This work used hybridPennisetum(HP) and fruit and vegetable waste (FVW) as raw materials to investigate the influence of different ratios of HP to FVW on the production of VFAs under different methanogenic inhibition conditions. It has been shown that both alkaline and neutral conditions (using methanogenic inhibitors), could generate higher acid yields than acidic conditions. Under initial alkaline conditions, mono-fermentation of HP and FVW could obtain maximum VFA yields of 596 ± 22 mg g−1VS and 626 ± 7 mg g−1VS, which were higher than those obtained under neutral conditions. In contrast, there was no remarkable difference in VFA yield between alkaline and neutral conditions when co-fermentation of HP and FVW was carried out. The VFA yields decreased significantly with the process of co-fermentation. The maximum VFA yields were decreased by 33.2% and 21.9% when HP was fermented with 15% and 30% of FVW, respectively. There was a clear difference in the composition of VFAs obtained under different initial conditions. The maximum selectivity was achieved under alkaline conditions, where the acetate content reached more than 85%. This study brings a theoretical basis for optimizing the anaerobic fermentation process of lignocellulose to produce VFAs. © The Royal Society of Chemistry 2020.
会议录	RSC Advances
会议录出版者	Royal Society of Chemistry
语种	英语
WOS研究方向	Chemistry
WOS记录号	WOS:000568227200028
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132666]
专题	兰州理工大学
作者单位	1.CAS Key Laboratory of Renewable Energy, Guangzhou; 510640, China; 2.Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou; 510640, China; 3.Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou; 510640, China; 4.University of Chinese Academy of Sciences, Beijing; 100049, China; 5.Western China Energy & Environment Research Center, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Xing, Tao,Yu, Shutai,Zhen, Feng,et al. Anaerobic fermentation of hybridPennisetummixed with fruit and vegetable wastes to produce volatile fatty acids[C]. 见:.