Biomass production by Arthrospira platensis under different culture conditions

Food Science and Technology (Campinas)

Gabriela Fernandes Pepe Da Silva De Castro¹  Roberta Ferreira Rizzo¹  Thaís Souza Passos¹  Beatriz Nascimento Corrêa Dos Santos¹  Daiana Da Silva Dias¹  Josiane Roberto Domingues¹  Kátia Gomes De Lima Araújo¹ 

关键词: cyanobacteria;    culture medium;    sodium bicarbonate;    sodium nitrate;    irradiance;   

DOI  :  10.1590/1678-457X.6421

来源: SciELO

【 摘 要 】

In biotechnological processes, the culture media components are responsible for high costs and exert a strong influence on the cyanobacteria behavior. The objective of this study was to evaluate the Arthrospira platensis growth potential for biomass production under different cultivation conditions using an experimental design. Three factors that are important for cyanobacteria growth were evaluated: sodium bicarbonate (9 to 18 g/l), sodium nitrate (1.25 to 2.5 g/l), and irradiance (20 to 120 µmol photons/m2.s–1). The results showed that the concentration of NaNO3 in the A. platensis medium can be reduced, resulting in increased concentrations of biomass produced. There was a higher biomass production due to the increase in the concentration of NaHCO3 and irradiance, mainly when these two factors varied tending towards the highest values studied. The results demonstrate the potential to produce Arthrospira platensis with lower costs and effluent generation without affecting cultivation performance.

【 授权许可】

CC BY   
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