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Compositional and toxicological evaluation of the diazotrophic cyanobacterium, Cyanothece sp. strain ATCC 51142Compositional analyses of Cyanothece sp. strain ATCC 51142 showed high protein (50-60%) and low fat (0.4-1%) content, and the ability to synthesize vitamin B12. The amino acid profile indicated that Cyanothece sp. was a balanced protein source. Fatty acids of the 18:3n-3 type were also present. Mineral analyses indicated that the cellular biomass may be a good source of Fe, Zn and Na. Caloric content was 4.5 to 5.1 kcal g dry weight-1 and the carbon content was approximately 40% on a dry weight basis. Nitrogen content was 8 to 9% on a dry weight basis and total nucleic acids were 1.3% on a dry weight basis. Short-term feeding studies in rats followed by histopathology found no toxicity or dietary incompatibility problems. The level of uric acid and allantoin in urine and tissues was low, suggesting no excess of nucleic acids, as sometimes reported in the past for a cyanobacteria-containing diet. The current work discusses the potential implications of these results for human nutrition applications.
Document ID
20040089765
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schneegurt, M. A.
(Purdue University West Lafayette, IN 47907, United States)
Arieli, B.
McKeehen, J. D.
Stephens, S. D.
Nielsen, S. S.
Saha, P. R.
Trumbo, P. R.
Sherman, L. A.
Mitchell, C. A.
Date Acquired
August 21, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Aquaculture (Amsterdam, Netherlands)
Volume: 134
ISSN: 0044-8486
Subject Category
Man/System Technology And Life Support
Funding Number(s)
CONTRACT_GRANT: NAGW2-329
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Life Support Systems
NASA Discipline Number 93-10
NASA Program NSCORT
Non-NASA Center

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