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Cultivation strategy to stimulate high carbohydrate content in Spirulina biomass.
Braga, Vagner da Silva; Mastrantonio, Duna Joanol da Silveira; Costa, Jorge Alberto Vieira; Morais, Michele Greque de.
Afiliação
  • Braga VDS; Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil.
  • Mastrantonio DJDS; Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil.
  • Costa JAV; Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil.
  • Morais MG; Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande, Brazil. Electronic address: migreque@yahoo.com.br.
Bioresour Technol ; 269: 221-226, 2018 Dec.
Article em En | MEDLINE | ID: mdl-30176519
This study focused on verifying if production of Spirulina biomass with high carbohydrate content is stimulated by reduced supply of nitrogen associated to addition of NaHCO3 or CO2 at different flow rates and times of injection. For this purpose, addition of 0.25 g L-1 of NaNO3 allowed Spirulina to accumulate up to 49.3% (w w-1) of carbohydrates with the highest amount of CO2 (0.3 vvm injected for 5 min). This value reached 59.1% (w w-1) when NaHCO3 was the carbon source. Meanwhile, biomass concentration achieved 0.81 and 0.97 g L-1, respectively. In contrast, protein content was inversely proportional to carbohydrate accumulation in the experiments. Thus, this study represents an important step to define cultivation conditions to enhance carbohydrate content in Spirulina. The carbohydrate-rich biomass could be further fermented to produce bioethanol.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Carboidratos / Spirulina Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Carboidratos / Spirulina Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido