Influence of culture medium recycling on the growth of a marine dinoflagellate microalga and bioactives production in a raceway photobioreactor
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URI: http://hdl.handle.net/10835/15312
ISSN: 2211-9264
DOI: https://doi.org/10.1016/j.algal.2020.101820
ISSN: 2211-9264
DOI: https://doi.org/10.1016/j.algal.2020.101820
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Molina Miras, Alejandro; López Rosales, Lorenzo; Sánchez Mirón, Asterio; López-Rodríguez, Mercedes; Cerón García, María Del Carmen; [et al.]Fecha
2020-01-27Resumen
Amphidinium carterae is a marine dinoflagellate microalga that produces high-value bioactive polyketides such as amphidinols and amphidinolides, which have remarkable cytotoxic, antifungal and antitumoral activities. This species also produces docosahexaenoic acid and the carotenoid peridinin as high-value byproducts. The development of any sustainable microalgae-based bioprocess must comprise complete valorization of the biomass and reuse of the exhausted culture medium as much as possible to comply with the circular economy concept. In this work we have assessed the effect of recycling the cell-free supernatant on the growth kinetics and production of amphidinols by A. carterae photoautotrophically cultured in a pilot-scale raceway-type photobioreactor in semi-continuous mode. Acclimation to the recycled medium was first studied on a laboratory scale and was accomplished in the fourth sub-culture, except for pigment content, which decreased throughout the process. No measurably negat...
Palabra/s clave
marina dinoflagellate
raceway photobioreactor
amphidinium carterae
medium recycling
amphidinols
valuable byproducts