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COMPARATIVE GROWTH AND BIOCHEMICAL COMPOSITION OF FOUR STRAINS OF Nostoc AND Anabaena (CYANOBACTERIA, NOSTOCALES) IN RELATION TO SODIUM NITRATE Acta biol.Colomb.
ROSALES LOAIZA,Néstor; VERA,Patricia; AIELLO-MAZZARRI,Cateryna; MORALES,Ever.
Nitrogen concentration is an essential parameter in cyanobacterial cultures to produce enriched biomass with biotechnological purposes. Growth and biochemical composition of Nostoc LAUN0015, Nostoc UAM206, Anabaena sp.1 and Anabaena sp.2 were compared at 0, 4.25, 8.5 and 17 mM NaNO3. Cultures under laboratory conditions were maintained for 30 days at a volume of 500 mL. Anabaena sp.1 yielded the highest value of dry mass of 0.26 ± 2.49 mg mL-1 at 8.5 mM NaNO3. For chlorophyll, phycocyanin and phycoerythrin, maximum values were achieved at 17 mM NaNO3 with 18.09 ± 1.74, 102.90 ± 6.73 and 53.47 ± 2.40 μg mL-1, respectively. Nostoc LAUN0015 produced its maximum value of protein 644.86 ± 19.77 μg mL-1, and 890 mg mL-1 of carbohydrates in the absence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anabaena; Biochemical composition; Biomass; Culture; Nitrate; Nostoc.
Ano: 2016 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000200003
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