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CELSS nutrition system utilizing snails.

Y Midorikawa1, T Fujii, A Ohira

  • 1JGC Corp., Tokyo, Japan.

Acta Astronautica
|August 1, 1993
PubMed
Summary
This summary is machine-generated.

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This study explored a lunar base closed ecological life support system (CELSS), finding that plants alone nearly met nutritional needs but lacked key nutrients. Snails were introduced to supplement the diet, successfully compensating for deficiencies.

Area of Science:

  • Space exploration
  • Life support systems
  • Astrobiology

Background:

  • Developing sustainable life support systems is crucial for long-duration space missions.
  • Previous research focused on plant-based nutrition for lunar bases.
  • Nutritional completeness remains a challenge for closed ecological life support systems (CELSS).

Purpose of the Study:

  • To evaluate a CELSS for a lunar base with eight crew members.
  • To assess the nutritional sufficiency of a plant-based diet (rice, soybean, lettuce, strawberry).
  • To investigate the integration of a snail-breeding subsystem to address nutritional gaps.

Main Methods:

  • Modeled a CELSS incorporating four plant species for crew nutrition.
  • Calculated required cultivation area per crew member.

Related Experiment Videos

  • Analyzed nutritional content of plants and identified deficiencies.
  • Introduced a snail-breeding subsystem to supplement missing nutrients.

    • Main Results:

    • Plant cultivation area requirement estimated at 40 m³ per crew member.
    • Plant-based diet nearly balanced fundamental nutritional needs.
    • Calcium, vitamin B2, vitamin A, and sodium were identified as lacking nutrients.
    • Snail meat successfully compensated for the identified nutritional deficiencies.

    Conclusions:

    • A hybrid food system combining plants and snails can achieve near-complete nutritional balance for a lunar base CELSS.
    • Snails represent a viable and valuable subsystem for enhancing nutritional completeness in space habitats.
    • Further research into snail cultivation and integration is warranted for future space exploration.