title: Biomass, lipid productivities and fatty acids composition of marine Nannochloropsis gaditana cultured in desalination concentrate.
abstract: In this study the feasibility of growing marine Nannochloropsis gaditana in desalination concentrate (DC) was explored and the influence of the DC concentration on the biomass growth, lipid productivities and fatty acids composition was assessed. The reuse of the medium with the optimum DC concentration in successive algal cultivation cycles and the additional of a carbon source to the optimized medium were also evaluated. On varying the DC concentration, the maximum biomass concentration (0.96gL(-1)) and lipid content (12.6%) were obtained for N. gaditana in the medium with the optimum DC concentration (75%). Over the course of the reuse of the optimum DC medium, three cultivation cycles were performed, observing that the biomass productivity is directly correlated to lipid productivity. Palmitic acid was the major fatty acid found in N. gaditana cells. The saturated fatty acids content of the algae enhanced significantly on increasing the DC concentration.
authors: Department of Food Science and Technology, Federal University of Santa Catarina, Av. Admar Gonzaga 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil. Electronic address: matos.a@posgrad.ufsc.br.
authors: Ângelo Paggi
authors: ÂP
authors: Matos
authors: Department of Chemical and Food Engineering, Federal University of Santa Catarina, Rua João Pio Duarte Silva, 241, Córrego Grande, 88037-000 Florianópolis, SC, Brazil.
authors: Rafael
authors: R
authors: Feller
authors: Department of Food Science and Technology, Federal University of Santa Catarina, Av. Admar Gonzaga 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil; Laboratory of Environmental Engineering, Southern University of Santa Catarina, Av. Pedra Branca, Unidade Pedra Branca, 88137-270 Palhoça, SC, Brazil.
authors: Elisa Helena Siegel
authors: EH
authors: Moecke
authors: Department of Food Science and Technology, Federal University of Santa Catarina, Av. Admar Gonzaga 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil.
authors: Ernani Sebastião
authors: ES
authors: Sant'Anna
mesh_terms: D018533:Biomass; D019149:Bioreactors; D005227:Fatty Acids / Q000032:analysis* / Q000737:chemistry / Q000378:metabolism; D050356:Lipid Metabolism; D058009:Stramenopiles / Q000737:chemistry / Q000378:metabolism*
chemical_list: D005227:Fatty Acids
keywords: Biomass; Desalination wastewater; Microalgae; Mixotrophic cultivation; Reuse of water