Influence of NaNO3 concentration and incident light intensity on Nannochloropsis oculata lipid accumulation
AUTOR(ES)
Gris, Lara Regina Soccol, Paim, Anderson de Campos, Farenzena, Marcelo, Trierweiler, Jorge Otávio
FONTE
Braz. arch. biol. technol.
DATA DE PUBLICAÇÃO
2013-08
RESUMO
This study aimed at evaluating the best conditions for lipid accumulation in the marine microalga Nannochloropsis oculata in an airlift photobioreactor. Experiments were carried out following a central composite design with the following variables: temperature (19 to 29°C), sodium nitrate concentration (NaNO3) in the culture medium (f/2) (25 to 125 mg.L-1) and incident light intensity (49 to 140 µE.m-2s-1). The maximum lipid production was 132.4 mg.L-1 under the following conditions: 27°C, NaNO3 concentration 105 mg.L-1 and 122 µE.m-2.s-1, which was 30% of dry weight of the biomass.
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