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	Application of sweet sorghum for biodiesel production by heterotrophic microalga Chlorella protothecoides
	Gao, Chunfang ; Zhai, Yan ; Ding, Yi ; Wu, Qingyu
	2010-10-12 ; 2010-10-12
关键词	Biodiesel Chlorella protothecoides Enzymatic hydrolysis Microalgae Sweet sorghum ETHANOL-PRODUCTION SACCHAROMYCES-CEREVISIAE FERMENTATION BIOFUELS JUICE CULTIVATION STRAIN ASIA OIL Energy & Fuels Engineering, Chemical
中文摘要	Microalga Chlorella protothecoides can grow heterotrophically with glucose as the carbon source and accumulate high proportion of lipids. The microalgal lipids are suitable for biodiesel production. To further increase lipid yield and reduce biodiesel cost, sweet sorghum juice was investigated as an alternative carbon source to glucose in the present study. When the initial reducing sugar concentration was 10 g L-1 in the culture medium, the dry cell yield and lipid content were 5.1 g L-1 and 52.5% using enzymatic hydrolyzates of sweet sorghum juice as the carbon source after 120 h-culture in flasks. The lipid yield was 35.7% higher than that using glucose. When 3.0 g L-1 yeast extract was added to the medium, the dry cell yield and lipid productivity was increased to 1.2 g L-1 day(-1) and 586.8 mg L-1 day(-1). Biodiesel produced from the lipid of C. protothecoides through acid catalyzed transesterification was analyzed by GC-MS, and the three most abundant components were oleic acid methyl ester, cetane acid methyl ester and linoleic acid methyl ester. The results indicate that sweet sorghum juice could effectively enhance algal lipid production, and its application may reduce the cost of algae-based biodiesel. (C) 2009 Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81857]
专题	清华大学
推荐引用方式 GB/T 7714	Gao, Chunfang,Zhai, Yan,Ding, Yi,et al. Application of sweet sorghum for biodiesel production by heterotrophic microalga Chlorella protothecoides[J],2010, 2010.
APA	Gao, Chunfang,Zhai, Yan,Ding, Yi,&Wu, Qingyu.(2010).Application of sweet sorghum for biodiesel production by heterotrophic microalga Chlorella protothecoides..
MLA	Gao, Chunfang,et al."Application of sweet sorghum for biodiesel production by heterotrophic microalga Chlorella protothecoides".(2010).

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