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Photosynthetic performance of Chlamydopodium (Chlorophyta) cultures grown in outdoor bioreactors
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SYSNO ASEP 0571662 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photosynthetic performance of Chlamydopodium (Chlorophyta) cultures grown in outdoor bioreactors Author(s) Masojídek, Jiří (MBU-M) RID, ORCID
Štěrbová, Karolína (MBU-M)
Serrano, C. G. (ES)
da Silva, J. C. (BR)
Grivalský, Tomáš (MBU-M) ORCID
Figueroa, F. L. (ES)
Fernandez, F. G. A. (ES)Source Title Applied Microbiology and Biotechnology. - : Springer - ISSN 0175-7598
Roč. 107, č. 7-8 (2023), s. 2249-2262Number of pages 14 s. Language eng - English Country DE - Germany Keywords Microalga ; Chlamydopodium ; Chlorophyll fluorescence ; Oxygen production ; Photosynthesis ; Pilot-scale bioreactors OECD category Microbiology Method of publishing Limited access Institutional support MBU-M - RVO:61388971 UT WOS 000947577700001 EID SCOPUS 85149721401 DOI 10.1007/s00253-023-12428-0 Annotation The microalga Chlamydopodium fusiforme MACC-430 was cultured in two types of outdoor pilot cultivation units-a thin-layer cascade (TLC) and a raceway pond (RWP) placed in a greenhouse. This case study aimed to test their potential suitability for cultivation scale-up to produce biomass for agriculture purposes (e.g., as biofertilizer or biostimulant). The culture response to the alteration of environmental conditions was evaluated in ´exemplary ´ situations of good and bad weather conditions using several photosynthesis measuring techniques, namely oxygen production, and chlorophyll (Chl) fluorescence. Validation of their suitability for online monitoring in large-scale plants has been one of the objectives of the trials. Both techniques were found fast and robust reliable to monitor microalgae activity in large-scale cultivation units. In both bioreactors, Chlamydopodium cultures grew well in the semi-continuous regime using daily dilution (0.20-0.25 day(-1)). The biomass productivity calculated per volume was significantly (about 5 times) higher in the RWPs compared to the TLCs. The measured photosynthesis variables showed that the build-up of dissolved oxygen concentration in the TLC was higher, up to 125-150% of saturation (at) as compared to the RWP (102-104at). As only ambient CO2 was available, its shortage was indicated by a pH increase due to photosynthetic activity in the thin-layer bioreactor at higher irradiance intensities. In this setup, the RWP was considered more suitable for scale-up due to higher areal productivity, lower construction and maintenance costs, the smaller land area required to maintain large culture volumes, as well as lower carbon depletion and dissolved oxygen build-up. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2024 Electronic address https://link.springer.com/article/10.1007/s00253-023-12428-0
Number of the records: 1