Cereal grains and their products will be included in long-term space missions beyond low earth orbit. Wheat is a candidate crop for the Advanced Life Support system and will likely be grown with other crops to provide food, oxygen, and water purification during extended planetary research missions. Apogee and Perigee are hard red spring wheat cultivars with dwarf and super-dwarf heights, respectively. These wheat varieties were developed at Utah State University for growth in space. Unique characteristics of these cultivars include: short height at full maturity, high edible bio-mass production per unit area, and elevated protein levels. The chemical and physical characteristics of these wheat cultivars important for functionality in foods have not been thoroughly investigated. The objective of this study was to characterize Apogee and Perigee wheat cultivars and compare them to common terrestrial wheat varieties using chemical and physical assays. Apogee and Perigee were grown hydroponically and in the field at Utah State University. Yecora Rojo, Parshall, and Yavaros 79 were purchased from commercial seed suppliers. Yecora Rojo and Parshall are hard red spring wheats, while Yarvaros 79 is a durum wheat. Chemical assays conducted on all wheat varieties were: proximate analysis, non-protein nitrogen, nitrate content, free-amino acid content, insoluble polymeric protein content, and total antioxidant capacity. The physical assay conducted on all wheat varieties was the Farinograph. Wheats were compared by wheat type, growth media (field vs. hydroponic), and flour type (whole-wheat vs white) for these assays. Wheat grown hydroponically exhibited higher protein levels than field grown wheat. Non-protein nitrogen was not accumulated as urea or ammonia. Proximate composition, nitrate levels, insoluble polymeric protein content, and total antioxidant capacity varied between varieties and growth conditions. Perigee would be the best wheat variety for growth in space because of its short stature and high protein levels.
Related Documents:WM1, WM2, WM3, WM8
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Date of this Version
ALS NSCORT Project Number
Project 13 - Food Processing
Microsoft Office Power Point 97-2003 Presentation
David Kotterman; email@example.com
ALS NSCORT Series
Internal Documents: Management: External Advisory
Copyright 2004, ALS-NSCORT. All Rights Reserved.
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