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Trends Biotechnol. 2014 Aug;32(8):422-30. doi: 10.1016/j.tibtech.2014.06.001. Epub 2014 Jul 8.

Light emitting diodes (LEDs) applied to microalgal production.

Author information

1
Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal; Centro Andaluz de Ciencia y Tecnología Marinas, University of Cadiz, Campus Universitario de Puerto Real, Cádiz, Spain.
2
Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
3
Centro Andaluz de Ciencia y Tecnología Marinas, University of Cadiz, Campus Universitario de Puerto Real, Cádiz, Spain.
4
Centre of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal. Electronic address: jvarela@ualg.pt.

Abstract

Light-emitting diodes (LEDs) will become one of the world's most important light sources and their integration in microalgal production systems (photobioreactors) needs to be considered. LEDs can improve the quality and quantity of microalgal biomass when applied during specific growth phases. However, microalgae need a balanced mix of wavelengths for normal growth, and respond to light differently according to the pigments acquired or lost during their evolutionary history. This review highlights recently published results on the effect of LEDs on microalgal physiology and biochemistry and how this knowledge can be applied in selecting different LEDs with specific technical properties for regulating biomass production by microalgae belonging to diverse taxonomic groups.

KEYWORDS:

energy efficiency; light requirements; light-emitting diodes (LEDs); microalgae; microalgal biochemicals; microalgal biomass

PMID:
25012573
DOI:
10.1016/j.tibtech.2014.06.001
[Indexed for MEDLINE]

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