title: Neochloris oleoabundans grown in enriched natural seawater for biodiesel feedstock: evaluation of its growth and biochemical composition.
abstract: The freshwater microalga Neochloris oleoabundans was used to study algal lipid production in enriched natural seawater, in order to assess its suitability as biodiesel feedstock. Optimal and nitrogen-stress (N-stress) conditions were analyzed. Under optimal conditions, the strain's growth rate was 0.73 div day(-1) and the biomass concentration was 1.5 g L(-1), while it had a maximum lipid yield under N-stress conditions (lipid content: 26% of dry weigh and lipid productivity: 56 mg L(-1) day(-1)). Lipid accumulation was mainly due to a significant increase of triacylglycerol content. Neutral lipids were characterized by a dominance of monounsaturated fatty acids and displayed a fatty acid profile that is suitable for biodiesel. This work offers an interesting alternative for sustainable microalgal oil synthesis for biodiesel production without using freshwater resources. However, further studies are necessary in order to optimize the lipid productivities required for commercial biodiesel production.
authors.affiliation: Laboratorio de Estudios Básicos y Biotecnológicos en Algas y Hongos (LEBBAH), Centro de Recursos Naturales Renovables de la Zona Semiárida (CERZOS) -CONICET, Camino de La Carrindanga, Km 7, 8000 Bahía Blanca, Argentina. bmpopovi@criba.edu.ar
authors.forename: Cecilia A
authors.initials: CA
authors.lastname: Popovich
authors.forename: Cecilia
authors.initials: C
authors.lastname: Damiani
authors.forename: Diana
authors.initials: D
authors.lastname: Constenla
authors.forename: Ana María
authors.initials: AM
authors.lastname: Martínez
authors.forename: Hugo
authors.initials: H
authors.lastname: Freije
authors.forename: Martina
authors.initials: M
authors.lastname: Giovanardi
authors.forename: Simonetta
authors.initials: S
authors.lastname: Pancaldi
authors.forename: Patricia I
authors.initials: PI
authors.lastname: Leonardi
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D008055:Lipids / Q000096:biosynthesis* / Q000737:chemistry*; D058086:Microalgae / Q000145:classification* / Q000378:metabolism*; D012623:Seawater / Q000382:microbiology*; D013045:Species Specificity
chemical_list: D056804:Biofuels; D008055:Lipids