Growth, lipid content, productivity, and fatty acid composition of tropical microalgae for scale-up production

Roger Huerlimann, R. de Nys, Kirsten Ruth Heimann

Research output: Contribution to journalArticlepeer-review

238 Citations (Scopus)

Abstract

Biomass and lipid productivity, lipid content, and quantitative and qualitative lipid composition are critical parameters in selecting microalgal species for commercial scale-up production. This study compares lipid content and composition, and lipid and biomass productivity during logarithmic, late logarithmic, and stationary phase of Nannochloropsis sp., Isochrysis sp., Tetraselmis sp., and Rhodomonas sp. grown in L1-, f/2-, and K-medium. Of the tested species, Tetraselmis sp. exhibited a lipid productivity of 3.9-4.8 gm-2 day-1 in any media type, with comparable lipid productivity by Nannochloropsis sp. and Isochrysis sp. when grown in L1-medium. The dry biomass productivity of Tetraselmis sp. (33.1-45.0 gm-2 day-1) exceeded that of the other species by a factor 2-10. Of the organisms studied, Tetraselmis sp. had the best dry biomass and/or lipid production profile in large-scale cultures. The present study provides a practical benchmark, which allows comparison of microalgal production systems with different footprints, as well as terrestrial systems.

Original languageEnglish
Pages (from-to)245-257
Number of pages13
JournalBiotechnology and Bioengineering
Volume107
Issue number2
DOIs
Publication statusPublished - 1 Oct 2010

Keywords

  • Aquaculture
  • Biodiesel
  • Lipid composition
  • Productivity
  • Tropical microalgae

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