The Effect of Shaking, CO2 Concentration and Light Intensity on Biomass Growth of Green Microalgae Desmodesmus communis

  • J. Vanags Biotechnical Centre, JSC, Riga, Latvia
  • L. Kunga Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
  • K. Dubencovs Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
  • V. Galvanauskas Kaunas University of Technology, Department of Automation, Kaunas, Lithuania
  • M. Balode Latvian Institute of Aquatic Ecology, Riga, Latvia
  • O. Grigs Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
Keywords: microalgae, mixing, CO2 concentration, light intensities, biomass growth

Abstract

There are many factors that can affect microalgae growth. In this research, four different groups of experiments were set up in order to determine the influence of different mixing conditions, CO2 concentration and light intensities on Desmodesmus communis growth. The range of CO2 concentration in the air - CO2 mixture was 0–16 v/v%, light intensities ranged between 100 µmol m-2s-1 and 300 µmol m-2s-1. The best biomass productivity and biomass yield of 0.54 g d-1 and 3.53 g l-1 respectively were achieved when mixing was provided by using shaker as well as gas bubbling with air - CO2 mixture of 96:4 v/v% and light intensity of 300 µmol m-2s-1.

DOI: http://dx.doi.org/10.5755/j01.erem.70.4.8437

Author Biographies

J. Vanags, Biotechnical Centre, JSC, Riga, Latvia
Director of Biotechnical Centre, JSC, Riga, Latvia
L. Kunga, Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
Laboratory assistant of bioengineering laboratory at Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
K. Dubencovs, Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
Engineer of Bioengineering laboratory at Institute of Wood Chemistry, Riga, Latvia
V. Galvanauskas, Kaunas University of Technology, Department of Automation, Kaunas, Lithuania
Professor at Kaunas University of Technology, Department of Automation, Kaunas, Lithuania
M. Balode, Latvian Institute of Aquatic Ecology, Riga, Latvia
Head of Department of Experimental Hydrobiology at Latvian Institute of Aquatic Ecology, Riga, Latvia
O. Grigs, Institute of Wood Chemistry, Bioengineering laboratory, Riga, Latvia
Engineer of Bioengineering laboratory at Institute of Wood Chemistry, Riga, Latvia
Published
2015-01-29
Section
Articles