A Proof-of-Concept Study on Attached Spirulina Cultivation Under Microgravity and Partial Gravity Aboard the…

Abstract

Microalgal attached cultivation circumvents gas-liquid separation issues of liquid-suspended cultivation, yet performance under reduced gravity remains unevaluated. As a proof-of-concept, we evaluated Arthrospira platensis (Spirulina) cultivation under artificial 1G, 1/6G, and microgravity ({micro}G) on the International Space Station. Spirulina expanded without cell detachment, medium floating, or component separation, with relative radial growth rates of 0.28%0.5 day-1 (1G), 0.22%0.5 day-1 (1/6G), and 0.17-0.21%0.5 day-1 ({micro}G), demonstrating feasibility in space.

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BibTeX RIS

BibTeX

@misc{inada2026proofofconcept,
  title = {{A Proof-of-Concept Study on Attached Spirulina Cultivation Under Microgravity and Partial Gravity Aboard the ISS}},
  author = {T. Inada and M. Kamada and H. Ohkuma and T. Shimazu and J. Kirima and Y. Kikuchi and H. Kasahara and T. Yamazaki and K. Kuriyama and E. Moriyama and S. Aoki and T. Hoshino},
  howpublished = {bioRxiv},
  year = {2026},
  month = oct,
  doi = {10.64898/2026.10.27.762075},
  url = {https://www.biorxiv.org/content/10.64898/2026.10.27.762075v1},
  note = {CC BY-NC-ND},
}

RIS

TY  - UNPB
TI  - A Proof-of-Concept Study on Attached Spirulina Cultivation Under Microgravity and Partial Gravity Aboard the ISS
AU  - T. Inada
AU  - M. Kamada
AU  - H. Ohkuma
AU  - T. Shimazu
AU  - J. Kirima
AU  - Y. Kikuchi
AU  - H. Kasahara
AU  - T. Yamazaki
AU  - K. Kuriyama
AU  - E. Moriyama
AU  - S. Aoki
AU  - T. Hoshino
PY  - 2026
DA  - 2026/10/27
PB  - bioRxiv
DO  - 10.64898/2026.10.27.762075
UR  - https://www.biorxiv.org/content/10.64898/2026.10.27.762075v1
AB  - Microalgal attached cultivation circumvents gas-liquid separation issues of liquid-suspended cultivation, yet performance under reduced gravity remains unevaluated. As a proof-of-concept, we evaluated Arthrospira platensis (Spirulina) cultivation under artificial 1G, 1/6G, and microgravity ({micro}G) on the International Space Station. Spirulina expanded without cell detachment, medium floating, or component separation, with relative radial growth rates of 0.28%0.5 day-1 (1G), 0.22%0.5 day-1 (1/6G), and 0.17-0.21%0.5 day-1 ({micro}G), demonstrating feasibility in space.
ER  -

Abstract

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