TY - NEWS
TI - The Effect of LEDs on Biomass and Phycobiliproteins Production in Thermotolerant Oscillatoria sp.
AU - Contreras Ropero, Jefferson Eduardo
AU - Lidueñez Ballesteros, Valentina S.
AU - Rodríguez Bohórquez, Angie D.
AU - García-Martinez, Janet
AU - Urbina-Suarez, Nestor Andres
AU - López Barrera, German Luciano
AU - Barajas Solano, andres F
AU - Samantha J., Bryan
AU - ZUORRO, Antonio
AB - This study evaluates the role of different LED lights (white, blue/red), intensity (µmol m−2
s
−1
),
and photoperiod in the production of biomass and phycocyanin-C, allophycocyanin and phycoerythrin (C-PC, APC, and PE respectively) from a novel thermotolerant strain of Oscillatoria sp. Results
show that a mixture of white with blue/red LEDs can effectively double the biomass concentration
up to 1.3 g/L, while the concentration of the selected phycobiliproteins increased proportionally to
biomass. Results also indicate that high light intensities (>120 µmol m−2
s
−1
) can diminish the final
concentration of C-PC, APC, and PE, significantly reducing the overall biomass produced. Finally, the
photoperiod analysis showed that longer light exposure times (18:6 h) improved both biomass and
phycobiliproteins concentration. These results demonstrate that the application of LEDs to produce a
novel strain of Oscillatoria sp can double the biomass concentration, and the photoperiod regulation
can eventually enhance the final concentration of specific phycobiliproteins such as APC and PE.
DA - 2022-11-17
KW - light:dark cycle
KW - light intensity
KW - light quality
KW - C-PC
KW - photosynthesis
PB - Applied Sciences (Switzerland)
UR - https://repositorio.ufps.edu.co/handle/ufps/6870
ER -