Response of growth and fatty acid compositions of Nannochloropsis sp to environmental factors under elevated CO2 concentration

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	Response of growth and fatty acid compositions of Nannochloropsis sp to environmental factors under elevated CO2 concentration
	Hu, Hanhua ; Gao, Kunshan
刊名	BIOTECHNOLOGY LETTERS
	2006-07-01
卷号	28 期号:13 页码:987-992
关键词	CO2 eicosapentaenoic acid Nannochloropsis sp. nutrient polyunsaturated fatty acids salinity temperature
ISSN号	0141-5492
通讯作者	Hu, HH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
中文摘要	Nannochloropsis sp. was grown with different levels of nitrate, phosphate, salinity and temperature with CO2 at 2,800 mu l l(-1). Increased levels of NaNO3 and KH2PO4 raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty acids (TFA) contents. Nannochloropsis sp. grew well at salinities from 22 to 49 g l(-1), and lowering salinity enhanced TFA and PUFAs contents. TFA contents increased with the increasing temperature but PUFAs contents decreased. The highest eicosapentaenoic acid (EPA, 20:5 omega 3) content based on the dry mass was above 3% under low N (150 mu M NaNO3) or high N (3000 mu M NaNO3) condition. Excessive nitrate, low salinity and temperature are thus favorable factors for improving EPA yields in Nannochloropsis sp.
英文摘要	Nannochloropsis sp. was grown with different levels of nitrate, phosphate, salinity and temperature with CO2 at 2,800 mu l l(-1). Increased levels of NaNO3 and KH2PO4 raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty acids (TFA) contents. Nannochloropsis sp. grew well at salinities from 22 to 49 g l(-1), and lowering salinity enhanced TFA and PUFAs contents. TFA contents increased with the increasing temperature but PUFAs contents decreased. The highest eicosapentaenoic acid (EPA, 20:5 omega 3) content based on the dry mass was above 3% under low N (150 mu M NaNO3) or high N (3000 mu M NaNO3) condition. Excessive nitrate, low salinity and temperature are thus favorable factors for improving EPA yields in Nannochloropsis sp.
学科主题	Biotechnology & Applied Microbiology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Biotechnology & Applied Microbiology
研究领域[WOS]	Biotechnology & Applied Microbiology
关键词[WOS]	BIOCHEMICAL-COMPOSITION ; EICOSAPENTAENOIC ACID ; TEMPERATURE ; MICROALGAE ; PHYTOPLANKTON ; NITROGEN
收录类别	SCI
语种	英语
WOS记录号	WOS:000238774200006
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/8934]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Shantou Univ, Marine Biol Inst, Shantou 515063, Peoples R China
推荐引用方式 GB/T 7714	Hu, Hanhua,Gao, Kunshan. Response of growth and fatty acid compositions of Nannochloropsis sp to environmental factors under elevated CO2 concentration[J]. BIOTECHNOLOGY LETTERS,2006,28(13):987-992.
APA	Hu, Hanhua,&Gao, Kunshan.(2006).Response of growth and fatty acid compositions of Nannochloropsis sp to environmental factors under elevated CO2 concentration.BIOTECHNOLOGY LETTERS,28(13),987-992.
MLA	Hu, Hanhua,et al."Response of growth and fatty acid compositions of Nannochloropsis sp to environmental factors under elevated CO2 concentration".BIOTECHNOLOGY LETTERS 28.13(2006):987-992.