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The characteristics of TAG and EPA accumulation in Nannochloropsis oceanica IMET1 under different nitrogen supply regimes
Meng, Yingying1,2; Jiang, Junpeng1,3; Wang, Haitao1,3; Cao, Xupeng1; Xue, Song1; Yang, Qing2; Wang, Weiliang4
关键词Nannochloropsis Oceanica Imet1 Tag Epa Nitrogen Limitation Fatty Acid Composition
刊名BIORESOURCE TECHNOLOGY
2015-03-01
DOI10.1016/j.biortech.2014.12.012
179页:483-489
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
关键词[WOS]CHLAMYDOMONAS-REINHARDTII ; TRIACYLGLYCEROL ACCUMULATION ; LIPID PRODUCTION ; MICROALGAE ; STARVATION ; BIODIESEL ; OPTIMIZATION ; PROTEIN ; GROWTH
英文摘要The strategy of nitrogen limitation has been widely applied to enhance lipid production in microalgae. The changes of cellular composition, and the characteristics of triacylglycerol (TAG) and eicosapentaenoic acid (EPA) accumulation in Nannochloropsis oceanica IMET1 were investigated. The results revealed that after nitrogen limitation TAG rather than carbohydrate was the dominant carbon sink in N. oceanica IMET1. Different nitrogen supplementation strategies were applied in order to achieve high TAG and EPA productivity, respectively. Limited nitrogen was supplied to improve TAG production, and a maximum productivity of 29.44 mg L-1 d(-1) was obtained, which was a 6.74-fold increase compared to nitrogen-depleted cultivation. The highest EPA productivity of 7.66 mg L-1 d(-1) was achieved under nitrogenreplete cultivation, which is different from the condition for TAG maximum productivity because the EPA is in glycolipids and phospholipids mainly. The fatty acid composition analysis identified the source of acyl group in TAG accumulation. (C) 2014 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000348041600064
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145955
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Marine Bioprod Engn Grp, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Life Sci & Biotechnol, Dalian 116024, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China
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Meng, Yingying,Jiang, Junpeng,Wang, Haitao,et al. The characteristics of TAG and EPA accumulation in Nannochloropsis oceanica IMET1 under different nitrogen supply regimes[J]. BIORESOURCE TECHNOLOGY,2015,179:483-489.
APA Meng, Yingying.,Jiang, Junpeng.,Wang, Haitao.,Cao, Xupeng.,Xue, Song.,...&Wang, Weiliang.(2015).The characteristics of TAG and EPA accumulation in Nannochloropsis oceanica IMET1 under different nitrogen supply regimes.BIORESOURCE TECHNOLOGY,179,483-489.
MLA Meng, Yingying,et al."The characteristics of TAG and EPA accumulation in Nannochloropsis oceanica IMET1 under different nitrogen supply regimes".BIORESOURCE TECHNOLOGY 179(2015):483-489.
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