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Acta Oceanologica Sinica

, Volume 37, Issue 2, pp 119–126 | Cite as

Lipid accumulation and CO2 utilization of two marine oil-rich microalgal strains in response to CO2 aeration

  • Shuai Wang
  • Li Zheng
  • Xiaotian Han
  • Baijuan Yang
  • Jingxi Li
  • Chengjun Sun
Article
  • 22 Downloads

Abstract

Biological CO2 sequestration by microalgae is a promising and environmentally friendly technology applied to sequester CO2. The characteristics of neutral lipid accumulation by two marine oil-rich microalgal strains, namely, Isochrysis galbana and Nannochloropsis sp., through CO2 enrichment cultivation were investigated in this study. The optimum culture conditions of the two microalgal strains are 10% CO2 and f medium. The maximum biomass productivity, total lipid content, maximum lipid productivity, carbon content, and CO2 fixation ability of the two microalgal strains were obtained. The corresponding parameters of the two strains were as follows: ((142.42±4.58) g/(m2·d), (149.92±1.80) g/(m2·d)), ((39.95±0.77)%, (37.91±0.58)%), ((84.47±1.56) g/(m2·d), (89.90±1.98) g/(m2·d)), ((45.98±1.75)%, (46.88±2.01)%), and ((33.74±1.65) g/(m2·d), (34.08±1.32) g/(m2·d)). Results indicated that the two marine microalgal strains with high CO2 fixation ability are potential strains for marine biodiesel development coupled with CO2 emission reduction.

Keywords

Isochrysis galbana Nannochloropsis sp. CO2 enrichment cultivation neutral lipid biodiesel open raceway pond 

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Copyright information

© The Chinese Society of Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Shuai Wang
    • 1
  • Li Zheng
    • 1
    • 2
  • Xiaotian Han
    • 3
  • Baijuan Yang
    • 1
  • Jingxi Li
    • 1
  • Chengjun Sun
    • 1
  1. 1.Key Laboratory for Marine Bioactive Substances and Modern Analytical Technology, the First Institute of OceanographyState Oceanic AdministrationQingdaoChina
  2. 2.Laboratory of Marine Ecology and Environmental ScienceQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
  3. 3.Key Laboratory of Marine Ecology and Environmental Science, Institute of OceanologyChinese Academy of SciencesQingdao 266071China

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