Influence of NaNO3 concentration and incident light intensity on Nannochloropsis oculata lipid accumulation

Brazilian Archives of Biology and Technology

Lara Regina Soccol Gris¹  Anderson De Campos Paim¹  Marcelo Farenzena¹  Jorge Otávio Trierweiler¹ 

[1] ,Universidade Federal do Rio Grande do Sul Departamento de Engenharia Química Porto Alegre RS ,Brasil

关键词: Nannochloropsis oculata;    Airlift Photobioreactor;    Central Composite Design;    Lipid;   

DOI  :  10.1590/S1516-89132013000400018

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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