Optimization of the production of lipids and carotenoids in the microalga Golenkinia aff. brevispicula
Ficheros
Identificadores
Compartir
Metadatos
Mostrar el registro completo del ítemFecha
2022-07-02Resumen
Microalgae are a promising platform to produce natural pigments and lipids when
compared to traditional sources, since they present faster growth and biomass
productivity and there is a wide diversity that has not been studied yet. The green
microalgae belonging to the genus Golenkinia presents few reports of its biomass
production and applications. In this work, the productivity of lipids and carotenoids
was studied in the strain Golenkinia aff. brevispicula FAUBA-3 using a two-stage
cultivation system: a first step for biomass production under semicontinuous
cultures, and a second step for the accumulation of lipids and carotenoids under
batch salinity stress (35 g L-1). The highest biomass productivity (0.92 g L-1 d
-1) was obtained under a dilution rate of 0.4 d-1. The growth rate (μ) was a hyperbolic function
of average irradiance inside the culture (Eav). The optimum Eav was 88.4 μmol photons m-2 s
-1 and the maximum specific growth rate (μmax) was 0.85 d-1. Photoinh...