Screening of freshwater oleaginous microalgae from South China and its cultivation characteristics in energy grass digestate

doi:10.1016/j.jclepro.2020.124193

GIEC OpenIR

	Screening of freshwater oleaginous microalgae from South China and its cultivation characteristics in energy grass digestate
	Xu, Jin 1,2; Zhu, Shunni2 ; Mo, Nimei 2; Wang, Zhongming2 ; Zeng, Eddy Y.1
	2020-12-10
发表期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
卷号	276 页码:9
通讯作者	Zeng, Eddy Y.(eddyzeng@jnu.edu.cn)
摘要	Microalgae biodiesel attracts considerable attention from energy organizations around the world. Lack of high oil-producing oleaginous microalgae is considered as one of the main bottlenecks for large-scale production of microalgae biodiesel. To address this issue, a nitrogen limitation-based method for screening oleaginous microalgae using 24-well plates was developed in the present study. Thirty microalgae strains collected from a subtropical freshwater system of South China were selected and cultivated in bubbling column photobioreactors, with lipid yields as the endpoints. The dry weight (DW) of seven strains exceeded 6.0 g L-1 and total lipid contents of 10 strains were over 40% DW. Coelastrella sp. GN12 was further evaluated as it had the highest lipid yield (4.94 g L-1) and abundant triacylglycerol (95% total lipid). This strain was cultured in various digestates from mono-digested energy grass diluted with BG-11. A ratio of 25% energy grass digestate: BG-11 (v: v) (designated as EG25) and a pure unsterilized energy grass digestate (designated as EG100U) were the most effective at growth and oil accumulation (with total lipid content > 50% DW). Total nitrogen removal rates of EG25 and EG100U were 73% and 57%, respectively, and the strain was even more effective at removing total phosphorus (96% and 94%, respectively). Therefore, energy grass digestate can be used as a substitute medium for GN12, transforming waste into valuable energy sources and achieving the benefits of resource recycling and clean energy production. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Oleaginous microalgae Energy grass digestate Effluent treatment Nitrogen removal Phosphorus removal
DOI	10.1016/j.jclepro.2020.124193
关键词[WOS]	NITROGEN STARVATION ; CHLORELLA-VULGARIS ; BIOGAS PRODUCTION ; POULTRY LITTER ; PERFORMANCE ; BIOFUEL ; WASTE ; TREBOUXIOPHYCEAE ; TRIACYLGLYCEROLS ; PRODUCTIVITY
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[31602182] ; National Natural Science Foundation of China[21878291] ; Natural Science Foundation for Research Team of Guangdong Province[2016A030312007]
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation for Research Team of Guangdong Province
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000579500800170
出版者	ELSEVIER SCI LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/34854
专题	中国科学院广州能源研究所
通讯作者	Zeng, Eddy Y.
作者单位	1.Jinan Univ, Sch Environm, Guangdong Key Lab Environm Pollut & Hlth, Guangzhou 511443, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jin,Zhu, Shunni,Mo, Nimei,et al. Screening of freshwater oleaginous microalgae from South China and its cultivation characteristics in energy grass digestate[J]. JOURNAL OF CLEANER PRODUCTION,2020,276:9.
APA	Xu, Jin,Zhu, Shunni,Mo, Nimei,Wang, Zhongming,&Zeng, Eddy Y..(2020).Screening of freshwater oleaginous microalgae from South China and its cultivation characteristics in energy grass digestate.JOURNAL OF CLEANER PRODUCTION,276,9.
MLA	Xu, Jin,et al."Screening of freshwater oleaginous microalgae from South China and its cultivation characteristics in energy grass digestate".JOURNAL OF CLEANER PRODUCTION 276(2020):9.