Pilot-scale bubble column photobioreactor culture of a marine dinoflagellate microalga illuminated with light emission diodes

Pilot-scale bubble column photobioreactor culture of a marine dinoflagellate microalga illuminated with light emission diodes

•First ever scale-up to 80L of culture of the marine alga Karlodinium veneficum.•Multispectral light-emission diodes (LEDs) used with a column photobioreactor.•The incident irradiance from the LEDs mimicked outdoor sunlight.•The fluorescence ratio suggested stress-free culture of the shear-sensitive...

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Bibliographic Details
Published in:Bioresource technology Vol. 216; pp. 845 - 855
Main Authors: López-Rosales, L., García-Camacho, F., Sánchez-Mirón, A., Martín Beato, E., Chisti, Yusuf, Molina Grima, E.
Format: Journal Article
Language:English
Published: England Elsevier Ltd 01-09-2016
Subjects:
Biomass
Dinoflagellates
Dinoflagellida - growth & development
Irradiance model
Karlodinium veneficum
LED
Light
Microalgae
Photobioreactor
Photobioreactors
Irradiance model
Dinoflagellates
Microalgae
LED
Photobioreactor
Karlodinium veneficum
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Summary:•First ever scale-up to 80L of culture of the marine alga Karlodinium veneficum.•Multispectral light-emission diodes (LEDs) used with a column photobioreactor.•The incident irradiance from the LEDs mimicked outdoor sunlight.•The fluorescence ratio suggested stress-free culture of the shear-sensitive alga. Production of biomass of the shear-sensitive marine algal dinoflagellate Karlodinium veneficum was successfully scaled-up to 80L using a bubble column photobioreactor. The scale factor exceeded 28,500. Light-emission diodes were used as the light source. The diel irradiance profile mimicked the outdoor profile of natural sunlight. The final cell concentration in the absence of nutrient limitation in the scaled-up photobioreactor was nearly 12×105cellsmL−1, or the same as in laboratory culture systems. The pH-controlled culture (pH=8.5) was always carbon-sufficient. The culture was mixed pneumatically by using a superficial air velocity of 1.9×10−3ms−1 and the temperature was controlled at 21±1°C.
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ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2016.06.027