Data/hora: 06/06/2024 05:35:27

Provedor de dados: | 58
País: | Brazil
Título: | A method to estimate the biomass of Spirulina platensis cultivated on a solid medium
Autores: | Pelizer,Lúcia Helena; Moraes,Iracema de Oliveira.
Data: | 2014-09-01
Ano: | 2014
Palavras-chave: | Spirulina platensis; Solid state cultivation; Estimative of biomass; Sugarcane bagasse; Protein content.
Resumo: | This paper presents a method to estimate the biomass of Spirulina cultivated on solid medium with sugarcane bagasse as a support, in view of the difficulty in determining biomass concentrations in bioprocesses, particularly those conducted in semi-solid or solid media. The genus Spirulina of the family Oscillatoriaceae comprises the group of multicellular filamentous cyanobacteria (blue-green microalgae). Spirulina is used as fish feed in aquaculture, as a food supplement, a source of vitamins, pigments, antioxidants and fatty acids. Therefore, its growth parameters are extremely important in studies of the development and optimization of bioprocesses. For studies of biomass growth, Spirulina platensis was cultured on solid medium using sugarcane bagasse as a support. The biomass thus produced was estimated by determining the protein content of the material grown during the process, based on the ratio of dry weight to protein content obtained in the surface growth experiments. The protein content of the biomass grown in Erlenmeyer flasks on surface medium was examined daily to check the influence of culture time on the protein content of the biomass. The biomass showed an average protein content of 42.2%. This methodology enabled the concentration of biomass adhering to the sugarcane bagasse to be estimated from the indirect measurement of the protein content associated with cell growth.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300024
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822014000300024
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.45 n.3 2014
Fonte: | info:eu-repo/semantics/openAccess