A comparative study of the growth of Tetraselmis sp. in large scale fixed depth and decreasing depth raceway ponds

Bioresour Technol. 2016 Sep:216:114-20. doi: 10.1016/j.biortech.2016.05.058. Epub 2016 May 20.

Abstract

In this study, an alternative approach was proposed where excess seawater would be added only during inoculation (DD) rather than daily addition (FD). Growth and metabolite contents of Tetraselmis sp. weren't affected for daily increase of 2% NaCl salinity. Tetraselmis sp. was then cultured in DD and FD pond. In DD pond, initial culture depth was 23.5cm and its depth reduced as no water was added; for FD pond, everyday sterilized seawater was added to maintain 20cm depth. DD pond had higher biomass productivity compared to FD pond, until DD pond was deeper than FD pond; metabolite content and FAME profile of Tetraselmis sp. were also similar in both cultures. Therefore, considering the simplicity in operation, halo tolerant microalgae can be grown in DD pond method.

Keywords: Evaporation water loss; Large scale cultivation; Tetraselmis sp..

Publication types

  • Comparative Study

MeSH terms

  • Biomass
  • Chlorophyta / growth & development*
  • Chlorophyta / metabolism
  • Chlorophyta / radiation effects
  • Esters
  • Fatty Acids / analysis
  • Hydrogen-Ion Concentration
  • Light
  • Metabolome
  • Microalgae / growth & development*
  • Microalgae / metabolism
  • Microalgae / radiation effects
  • Ponds / microbiology*
  • Salinity
  • Seawater
  • Sodium Chloride / metabolism
  • Temperature
  • Water / metabolism

Substances

  • Esters
  • Fatty Acids
  • Water
  • Sodium Chloride