Cited by 20Algal biology and biofuel productionMarine and coastal plant biologyInnovations in Aquaponics and Hydroponics Systems

Carbon Mass Balance in Arthrospira platensis Culture with Medium Recycle and High CO2 Supply

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Kishi, Masatoshi, Yamada, Yukina, Katayama, Tomoyo, Matsuyama, Tatsushi, Toda, Tatsuki·2019·Applied Sciences

Abstract

Medium recycling combined with CO2 recovery helps sustainable use of the alkaline medium in Arthrospira culture. However, high CO2 supply may cause inorganic carbon accumulation and pH reduction, which could result in low CO2 recovery and reduced algal growth. This study aimed to elucidate the effect of medium recycling and high CO2 supply through carbon mass balance analysis in Arthrospira culture. In all CO2 supply conditions, carbon supply was higher than Arthrospira carbon assimilation, which accounted for 30–58% of supply. However, CO2 recovery of nearly 100% and 63% for lower (0.20 and 0.39 gC L−1 d−1) and higher (0.59 gC L−1 d−1) CO2 supply rates were achieved, respectively, because of the high concentration of the alkaline agent. The excess carbon accumulated in the medium and ultimately escaped from the system in a form of dissolved inorganic carbon (DIC). Dissolved organic carbon (DOC) contributed to 16–24% of the total photosynthetically assimilated carbon, and the final concentration reached 260–367 mgC L−1, but there was no significant growth reduction caused by DIC and DOC accumulation. This study demonstrated the stability of the medium-recycling process even at high CO2 supply rates although a balanced supply is recommended for longer operations.

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  • The photoautotrophic cultivation of Arthrospira platensis would allow production of valuable biomass using CO2 from industrial processes and other human activities as a carbon source.

    “the photoautotrophic cultivation of the cyanobacterium A. platensis would allow to produce valuable biomass using the CO 2 from industrial processes and other human activities as a carbon source [38].”

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Research works printed but not linked: 4

  1. Zarrouk, C. Contribution à L'étude D'une Cyanophycée: Influence de Divers Facteurs Physiques et Chimiques sur la Croissance et la Photosynthèse de Spirulina maxima (Setch et Gardner) Geitler. Ph.D. Thesis, University of Paris, Paris, France, 1966.
  2. Zeebe, R.; Wolf-Gladrow, D. CO 2 in Seawater-Equilibrium, Kinetics, Isotopes, 1st ed.; Halpern, D., Ed.; Elsevier: Amsterdam, The Netherlands, 2001; ISBN 978-0-444-50946-8.
  3. Stumm, W.; Morgan, J.J. Aquatic Chemistry: Chemical Equilibria and Rates in Natural Waters, 3rd ed.; Wiley-Interscience: New York, NY, USA, 1993; Volume 3, ISBN 0471511854.
  4. Richmond, A., Hu, Q., Eds.; John Wiley & Sons, Ltd.: Oxford, UK, 2013; pp. 37-68. ISBN 9781118567166.

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Authors
Kishi, M., Yamada, Y., Katayama, T., Matsuyama, T., & Toda, T.
Affiliations
  • Soka University (JP)
  • The University of Tokyo (JP)
Corresponding author
Kishi, Masatoshi
Venue
Applied Sciences
Publisher
MDPI AG
Published
2019-12-27
Volume
10
Issue
1
Pages
228
ISSN
2076-3417 (ISSN-L)
OpenAlex
W2998569055
Cited by
19
References
35
Citations by year
2026: 4 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 2
FWCI
0.59
Type
journal article
Language
en
Open access
Locations
  • Applied Sciences (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Japan Science and Technology Agency (SATREPS)
  • Ministry of Education, Culture, Sports, Science and Technology (Private University Research Branding Project)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal plant biology
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Innovations in Aquaponics and Hydroponics Systems
Keywords
Spirulina platensis, carbon mass balance, CO2 supply, CO2 recovery, dissolved inorganic carbon, dissolved organic carbon, pH reduction, carbon assimilation, microalgae cultivation

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