LAPSE:2023.30204
Published Article
LAPSE:2023.30204
Operation Regimes: A Comparison Based on Nannochloropsis oceanica Biomass and Lipid Productivity
April 14, 2023
Microalgae are currently considered to be a promising feedstock for biodiesel production. However, significant research efforts are crucial to improve the current biomass and lipid productivities under real outdoor production conditions. In this context, batch, continuous and semi-continuous operation regimes were compared during the Spring/Summer seasons in 2.6 m3 tubular photobioreactors to select the most suitable one for the production of the oleaginous microalga Nannochloropsis oceanica. Results obtained revealed that N. oceanica grown using the semi-continuous and continuous operation regimes enabled a 1.5-fold increase in biomass volumetric productivity compared to that cultivated in batch. The lipid productivity was 1.7-fold higher under semi-continuous cultivation than that under a batch operation regime. On the other hand, the semi-continuous and continuous operation regimes spent nearly the double amount of water compared to that of the batch regime. Interestingly, the biochemical profile of produced biomass using the different operation regimes was not affected regarding the contents of proteins, lipids and fatty acids. Overall, these results show that the semi-continuous operation regime is more suitable for the outdoor production of N. oceanica, significantly improving the biomass and lipid productivities at large-scale, which is a crucial factor for biodiesel production.
Record ID
Keywords
Nannochloropsis oceanica, operation regimes, outdoor cultivation, pilot-scale, tubular photobioreactor
Subject
Suggested Citation
Guerra I, Pereira H, Costa M, Silva JT, Santos T, Varela J, Mateus M, Silva J. Operation Regimes: A Comparison Based on Nannochloropsis oceanica Biomass and Lipid Productivity. (2023). LAPSE:2023.30204
Author Affiliations
Guerra I: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal; iBB—Institute for Bioengineering and Biosciences, IST, Universidade de Lisboa, Av. Rovisco Pais, nº1, 1049-001 Lisbon, Portugal
Pereira H: GreenCoLab—Associação Oceano Verde, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
Costa M: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal [ORCID]
Silva JT: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
Santos T: CCMAR—Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139 Faro, Portugal
Varela J: GreenCoLab—Associação Oceano Verde, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal; CCMAR—Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139 Faro, Portugal [ORCID]
Mateus M: iBB—Institute for Bioengineering and Biosciences, IST, Universidade de Lisboa, Av. Rovisco Pais, nº1, 1049-001 Lisbon, Portugal [ORCID]
Silva J: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
Pereira H: GreenCoLab—Associação Oceano Verde, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
Costa M: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal [ORCID]
Silva JT: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
Santos T: CCMAR—Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139 Faro, Portugal
Varela J: GreenCoLab—Associação Oceano Verde, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal; CCMAR—Centre of Marine Sciences, University of Algarve, Gambelas, 8005-139 Faro, Portugal [ORCID]
Mateus M: iBB—Institute for Bioengineering and Biosciences, IST, Universidade de Lisboa, Av. Rovisco Pais, nº1, 1049-001 Lisbon, Portugal [ORCID]
Silva J: ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
Journal Name
Energies
Volume
14
Issue
6
First Page
1542
Year
2021
Publication Date
2021-03-11
ISSN
1996-1073
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Original Submission
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PII: en14061542, Publication Type: Journal Article
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LAPSE:2023.30204
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https://doi.org/10.3390/en14061542
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