Enhanced biodiesel production in Neochloris oleoabundans by a semi-continuous process in two-stage photobioreactors

Se Young Yoon, Min Eui Hong, Won Seok Chang, Sang Jun Sim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Under autotrophic conditions, highly productive biodiesel production was achieved using a semi-continuous culture system in Neochloris oleoabundans. In particular, the flue gas generated by combustion of liquefied natural gas and natural solar radiation was used for cost-effective microalgal culture system. In semi-continuous culture, the greater part (∼80 %) of the culture volume containing vegetative cells grown under nitrogen-replete conditions in a first photobioreactor (PBR) was directly transferred to a second PBR and cultured sequentially under nitrogen-depleted conditions for accelerating oil accumulation. As a result, in semi-continuous culture, the productivities of biomass and biodiesel in the cells were increased by 58 % (growth phase) and 51 % (induction phase) compared to the cells in batch culture, respectively. The semi-continuous culture system using two stage photobioreactors is a very efficient strategy to further improve biodiesel production from microalgae under photoautotrophic conditions.

Original languageEnglish
Pages (from-to)1415-1421
Number of pages7
JournalBioprocess and Biosystems Engineering
Volume38
Issue number7
DOIs
Publication statusPublished - 2015 Jul 29

Fingerprint

Photobioreactors
Biofuels
Biodiesel
Nitrogen
Natural Gas
Background Radiation
Microalgae
Batch Cell Culture Techniques
Solar radiation
Liquefied natural gas
Flue gases
Cell culture
Biomass
Oils
Gases
Productivity
Cells
Costs and Cost Analysis
Growth
Costs

Keywords

  • Closed-photobioreactor
  • Flue gas
  • Natural sunlight
  • Neochloris oleoabundans
  • Photoautotrophic biodiesel production
  • Semi-continuous process

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

Cite this

Enhanced biodiesel production in Neochloris oleoabundans by a semi-continuous process in two-stage photobioreactors. / Yoon, Se Young; Hong, Min Eui; Chang, Won Seok; Sim, Sang Jun.

In: Bioprocess and Biosystems Engineering, Vol. 38, No. 7, 29.07.2015, p. 1415-1421.

Research output: Contribution to journalArticle

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