Influence of Organic Carbon Sources on Growth and Lipid Content of Marine Green Alga Dunaliella tertiolecta

  • Rizwan, Muhammad ;
  • Mujtaba, Ghulam ;
  • Lee, Kisay
  • Received : 2014.12.19
  • Accepted : 2014.12.29
  • Published : 2014.12.31


This study investigated the potential use of various organic carbon sources (glucose, glycerol and acetate) and different concentrations of $CO_2$ for culturing marine microalga Dunaliella tertiolecta. Cell growth and lipid production were monitored under heterotrophic, mixotrophic and photoautotrophic modes of cultivation. D. tertiolecta showed the ability to grow under mixotrophic (acetate and glucose), heterotrophic (glucose) and photoautotrophic condition under high $CO_2$ concentration (15%). With all the organic carbon sources (glucose, glycerol and acetate) tested in this study, 1~5% acetate enhanced cell growth rate and lipid content, while higher concentrations of acetate (10% and 15%) were inhibitory and resulted in cell death.


Dunaliella tertiolecta;organic carbons;mixotrophic;heterotrophic;lipid


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Supported by : Ministry of Oceans and Fisheries