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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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SYSNO ASEP 0553483 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Efficient microalgae feed production for fish hatcheries using an annular column photobioreactor characterized by a short light path and central LED illumination Author(s) Ranglová, Karolína (MBU-M) ORCID
Bureš, Michal (MBU-M)
Manoel, Joao Camara (MBU-M) ORCID
Lakatos, Gergely Erno (MBU-M) ORCID
Masojídek, Jiří (MBU-M) RID, ORCIDSource Title Journal of Applied Phycology. - : Springer - ISSN 0921-8971
Roč. 34, č. 1 (2022), s. 31-41Number of pages 11 s. Language eng - English Country US - United States Keywords growth ; cultivation ; photosynthesis ; cultures ; design ; performance ; Annular column photobioreactor ; Microalgae ; Productivity ; Photosynthesis ; Fatty acids ; Hatcheries Subject RIV EE - Microbiology, Virology OECD category Microbiology Method of publishing Limited access Institutional support MBU-M - RVO:61388971 UT WOS 000739211300001 EID SCOPUS 85122306634 DOI 10.1007/s10811-021-02647-1 Annotation 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. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2023 Electronic address https://link.springer.com/article/10.1007/s10811-021-02647-1
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