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PubMed · 14631999

Optimized bioregenerative space diet selection with crew choice.

Carrie Vicens·Carolyn Wang·Ammar Olabi·Peter Jackson·Jean Hunter
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Abstract

Previous studies on optimization of crew diets have not accounted for choice. A diet selection model with crew choice was developed. Scenario analyses were conducted to assess the feasibility and cost of certain crew preferences, such as preferences for numerous-desserts, high-salt, and high-acceptability foods. For comparison purposes, a no-choice and a random-choice scenario were considered. The model was found to be feasible in terms of food variety and overall costs. The numerous-desserts, high-acceptability, and random-choice scenarios all resulted in feasible solutions costing between 13.2 and 17.3 kg ESM/person-day. Only the high-sodium scenario yielded an infeasible solution. This occurred when the foods highest in salt content were selected for the crew-choice portion of the diet. This infeasibility can be avoided by limiting the total sodium content in the crew-choice portion of the diet. Cost savings were found by reducing food variety in scenarios where the preference bias strongly affected nutritional content.

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AstronautsChoice BehaviorDietEcological Systems, ClosedFood PreferencesFood, FormulatedHumansLife Support SystemsMarsMenu PlanningModels, TheoreticalNutritional RequirementsSodium, DietarySpace FlightNASA Discipline Life Support SystemsNon-NASA CenterJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.

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Carrie Vicens, Carolyn Wang, Ammar Olabi, Peter Jackson, Jean Hunter. 2003. Optimized bioregenerative space diet selection with crew choice.. https://doi.org/10.3727/1542966034605243

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