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Efficient microalgae feed production for fish hatcheries using an annular column photobioreactor characterized by a short light path and central LED illumination

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    0553483 - MBÚ 2023 RIV US eng J - Journal Article
    Ranglová, Karolína - Bureš, Michal - Manoel, Joao Camara - Lakatos, Gergely Erno - Masojídek, Jiří
    Efficient microalgae feed production for fish hatcheries using an annular column photobioreactor characterized by a short light path and central LED illumination.
    Journal of Applied Phycology. Roč. 34, č. 1 (2022), s. 31-41. ISSN 0921-8971. E-ISSN 1573-5176
    Grant - others: European Regional Development Fund(CZ) ATCZ221
    Program: Interreg ČR-At
    Institutional support: RVO:61388971
    Keywords : growth * cultivation * photosynthesis * cultures * design * performance * Annular column photobioreactor * Microalgae * Productivity * Photosynthesis * Fatty acids * Hatcheries
    OECD category: Microbiology
    Impact factor: 3.404, year: 2021
    Method of publishing: Limited access
    https://link.springer.com/article/10.1007/s10811-021-02647-1

    In this study, we aimed to set up and test two models of annular-column photobioreactors (AC-PBR 1 and AC-PBR 2) in order to produce microalgae for fish hatcheries. Both models with a different design were characterized by a short light-path and central LED light source providing homogenous illumination of thin culture layer, sufficient mixing, and continuous temperature control guaranteed a stable cultivation regime and high biomass productivity. The AC-PBR 1 is characterized by a culture thickness of 5.5 cm and the maximum irradiance of 1200 mu mol photons m(-2) s(-1) while in AC-PBR 2, the culture layer was decreased to 4.6 cm and the maximum irradiance intensity could reach 1600 mu mol photons m(-2) s(-1). AC-PBR 1 and AC-PBR 2 were compared using the selected microalgae strain Vischeria helvetica (class Eustigmatophyceae) which is a suitable feed source for rotifers further used as a live food for fish larvae. The photosynthetic performance, biomass productivity, pigment content, and fatty acid profile were evaluated. The volumetric productivity under continuous illumination at optimal growth temperature reached 0.16 and 0.33 g DW L-1 day(-1), corresponding to an areal productivity of 12.4 and 18.9 g DW m(-2) day(-1) for AC-PBR 1 and AC-BR2, respectively.
    Permanent Link: http://hdl.handle.net/11104/0331406

     
     
Number of the records: 1