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学科主题: Biotechnology & Applied Microbiology
题名: Optimization of growth and fatty acid composition of a unicellular marine picoplankton, Nannochloropsis sp., with enriched carbon sources
作者: Hanhua Hu ; Kunshan Gao
通讯作者: Gao, KS, Shantou Univ, Ctr Sci, Inst Marine Biol, Shantou 515063, Peoples R China
关键词: acetate ; carbon source ; CO2 ; eicosapentaenoic acid ; Nannochloropsis sp. ; polyunsaturated fatty acids
刊名: BIOTECHNOLOGY LETTERS
发表日期: 2003
卷: 25, 期:5, 页:421-425
收录类别: SCI
部门归属: Shantou Univ, Ctr Sci, Inst Marine Biol, Shantou 515063, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
摘要: A unicellular marine picoplankton, Nannochloropsis sp., was grown under CO2-enriched photoautotrophic or/and acetate-added mixotrophic conditions. Photoautotrophic conditions with enriched CO2 of 2800 mul CO2 l(-1) and aeration gave the highest biomass yield (634 mg dry wt l(-1)), the highest total lipid content (9% of dry wt), total fatty acids (64 mg g(-1) dry wt), polyunsaturated fatty acids (35% total fatty acids) and eicosapentaenoic acid (EPA, 20:5omega3) (16 mg g(-1) dry wt or 25% of total fatty acids). Mixotrophic cultures gave a greater protein content but less carbohydrates. Adding sodium acetate (2 mM) decreased the amounts of the total fatty acids and EPA. Elevation of CO2 in photoautotrophic culture thus enhances growth and raises the production of EPA in Nannochloropsis sp.
WOS记录号: WOS:000181038400011
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9744
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Hanhua Hu; Kunshan Gao.Optimization of growth and fatty acid composition of a unicellular marine picoplankton, Nannochloropsis sp., with enriched carbon sources,BIOTECHNOLOGY LETTERS,2003,25(5):421-425
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