Impact of light quality on biomass production and fatty acid content in the microalga Chlorella vulgaris

Abstract

In this study, the green microalga Chlorella vulgaris was exposed to monochromatic light at six different wavelengths in order to study the effect on biomass productivity and fatty acid content. A significantly higher amount of biomass by produced in the treatments with yellow, red and white light compared with blue, green and purple light. There were also significant differences in total lipid content and fatty acid profile between the treatments. The green light regime gave the lowest concentration of lipids, but increased the concentration of polyunsaturated fatty acids. Thus it can be concluded that light quality significantly affects biomass productivity, total lipid concentration and fatty acid profile in the microalga C. vulgaris. (C) 2014 Elsevier Ltd. All rights reserved.

Keywords

FAME; Light Emitting Diode; Microalgae; Wavelength

Published in

Bioresource Technology
2014, Volume: 159, pages: 465-467 Publisher: ELSEVIER SCI LTD

SLU Authors

• Hultberg, Malin

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Larsson Jönsson, Helene

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

• Carlsson, Anders

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Bergstrand, Karl-Johan

  • Department of Biosystems and Technology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Microbiology


Publication identifier

DOI: https://doi.org/10.1016/j.biortech.2014.03.092

Permanent link to this page (URI)

https://res.slu.se/id/publ/58902