Differential fatty acid profiles of Chlorella kessleri grown with organic materials

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	Differential fatty acid profiles of Chlorella kessleri grown with organic materials
	Wang, Yan1 ; Chen, Tao 2; Qin, Song1
刊名	JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
	2013-04-01
卷号	88 期号:4 页码:651-657
关键词	Chlorella Kessleri Fatty Acid Glucose Glycerol Mixotrophic
ISSN号	0268-2575
通讯作者	Wang, Y (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China. ywang@yic.ac.cn
产权排序	[Wang, Yan; Qin, Song] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Chen, Tao] Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China
文献子类	Article
英文摘要	BACKGROUND: Integration of oleaginous microalgae cultivation with wastewater treatment is considered a low-cost approach for manufacturing algae-based biodiesel. However, autotrophic microalgae cannot survive in organic wastewater where the effluent is usually turbid and sunlight cannot penetrate into the wastewater. Thus mixotrophic microalgae should be explored. The objective of this study was to investigate the potential of using mixotrophic Chlorella kessleri to produce fatty acids from organic materials. RESULTS: Results revealed that mixotrophic C. kessleri fatty acids display much greater productions (up to 54.67% of cell dry weight) and more suitable compositions for biodiesel production (moderate carbon chain length mainly with C16 and C18, down to 1.17 delta/mol of unsaturation degree) than autotrophic ones. A suitable final pH (near neutral) after nitrate-depletion and a high organic carbon consumption seemed to be the key factors manipulating fatty acids production under whichever organic substrate tested. CONCLUSION: These characteristics increase the acceptability in using mixotrophic C. kessleri as a potential easy-control candidate in biodiesel production. If fed with available organic effluent of wastewater as the nutrient supply, C. kessleri may have great potential for profitable biodiesel. (c) 2012 Society of Chemical Industry; BACKGROUND: Integration of oleaginous microalgae cultivation with wastewater treatment is considered a low-cost approach for manufacturing algae-based biodiesel. However, autotrophic microalgae cannot survive in organic wastewater where the effluent is usually turbid and sunlight cannot penetrate into the wastewater. Thus mixotrophic microalgae should be explored. The objective of this study was to investigate the potential of using mixotrophic Chlorella kessleri to produce fatty acids from organic materials. RESULTS: Results revealed that mixotrophic C. kessleri fatty acids display much greater productions (up to 54.67% of cell dry weight) and more suitable compositions for biodiesel production (moderate carbon chain length mainly with C16 and C18, down to 1.17 delta/mol of unsaturation degree) than autotrophic ones. A suitable final pH (near neutral) after nitrate-depletion and a high organic carbon consumption seemed to be the key factors manipulating fatty acids production under whichever organic substrate tested. CONCLUSION: These characteristics increase the acceptability in using mixotrophic C. kessleri as a potential easy-control candidate in biodiesel production. If fed with available organic effluent of wastewater as the nutrient supply, C. kessleri may have great potential for profitable biodiesel. (c) 2012 Society of Chemical Industry
学科主题	Biotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
URL标识	查看原文
WOS关键词	HETEROTROPHIC CULTURES ; BIODIESEL PRODUCTION ; MIXOTROPHIC GROWTH ; WASTE-WATER ; MICROALGAE ; CULTIVATION ; VULGARIS ; PROTOTHECOIDES ; GLYCEROL ; STRAINS
WOS研究方向	Biotechnology & Applied Microbiology ; Chemistry ; Engineering
语种	英语
WOS记录号	WOS:000316627600018
资助机构	National Natural Science Foundation of China [50904051]; Science and Technology Planning Project of Yantai, China [2010247]; open fund of Shandong Oriental Ocean Sci-Tech Co., Ltd [200803]
公开日期	2013-08-14
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6423]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China 2.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yan,Chen, Tao,Qin, Song. Differential fatty acid profiles of Chlorella kessleri grown with organic materials[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2013,88(4):651-657.
APA	Wang, Yan,Chen, Tao,&Qin, Song.(2013).Differential fatty acid profiles of Chlorella kessleri grown with organic materials.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,88(4),651-657.
MLA	Wang, Yan,et al."Differential fatty acid profiles of Chlorella kessleri grown with organic materials".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 88.4(2013):651-657.