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Proximate nutritional composition of CELSS crops grown at different CO2 partial pressuresTwo Controlled Ecological Life Support System (CELSS) candidate crops, soybean (Glycine max) and potato (Solanum tuberosum), were grown hydroponically in controlled environments maintained at carbon dioxide (CO2) partial pressures ranging from 0.05 to 1.00 kPa (500 to 10,000 ppm at 101 kPa atmospheric pressure). Plants were harvested at maturity (90 days for soybean and 105 days for potato) and all tissues analyzed for proximate nutritional composition (i.e. protein, fat, carbohydrate, crude fiber, and ash content). Soybean seed ash and crude fiber were higher and carbohydrate was lower than values reported for field-grown seed. Potato tubers showed little difference from field-grown tubers. Crude fiber of soybean stems and leaves increased with increased CO2, as did soybean leaf protein (total nitrogen). Potato leaf and stem (combined) protein levels also increased with increased CO2, while leaf and stem carbohydrates decreased. Values for leaf and stem protein and ash were higher than values generally reported for field-grown plants for both species. Results suggest that CO2 partial pressure should have little influence on proximate composition of potato tubers or soybean seed, but that high ash and protein levels might be expected from leaves and stems of crops grown in controlled environments of a CELSS.
Document ID
19950062181
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wheeler, R. M.
(Kennedy Space Center Florida, US, United States)
Mackowiak, C. L.
(Kennedy Space Center Florida, US, United States)
Sager, J. C.
(Kennedy Space Center Florida, US, United States)
Knott, W. M.
(Kennedy Space Center Florida, US, United States)
Berry, W. L.
(Kennedy Space Center Florida, US, United States)
Date Acquired
August 16, 2013
Publication Date
November 1, 1994
Publication Information
Publication: Life sciences and space research 25 (3): Natural and artificial ecosystems; Meeting F4 of the COSPAR Plenary Meeting, 29th, Washington, DC, Aug. 28-Sep. 5, 1992 . A95-93759
Volume: 14
Issue: 11
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Accession Number
95A93780
Distribution Limits
Public
Copyright
Other

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