Journal
BIORESOURCE TECHNOLOGY
Volume 291, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.121846
Keywords
LEDs; Growth; Pigment yield; Photosynthesis; Arthrospira maxima
Funding
- Basic Science Research Program via the National Research Foundation of Korea (NRF) - Ministry of Education [2018048395]
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The aim of this study was to evaluate the effects of different colored light emitting diodes (LEDs) on the growth, pigment yield, and photosynthetic performance of Arthrospira maxima, a commercially exploited species of cyanobacteria. The highest growth and chlorophyll a (Chl a) concentration were obtained under red LED and white fluorescent light, while the lowest growth and Chl a concentration were observed under blue LED. However, blue LED produced the highest levels of phycobiliproteins (3.20 mg.g(-1) phycocyanin [PC]; 0.19 mg.g(-1) allophycocyanin [APC]; 0.97 mg.g(-1) for phycoerythrin [PE], effective quantum yield (Phi(PSII)) and maximum relative electron transport rate (rETR(max)) in A. maxima. The results of this study suggest that red and blue LEDs increase the biomass yield and pigment content of cyanobacteria, respectively, and the combined use of red and blue light may significantly improve algal biomass and biopigment yield.
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