title: Feasibility of biodiesel production by microalgae Chlorella sp. (FACHB-1748) under outdoor conditions.
abstract: Chlorella sp. (FACHB-1748) was cultivated outdoors under natural sunlight to evaluate its potential for biofuel production. Urea was selected as nitrogen source, and the concentration was optimized. When the culture reached the late exponential stage, a triggering lipid accumulation test was conducted using different concentrations of sodium chloride and acetate. A scaling-up experiment was also conducted in a 70L photobioreactor. The highest biomass productivity (222.42, 154.48 mg/L/d) and lipid productivity (64.30, 33.69mg/L/d) were obtained with 0.1g/L urea in 5 and 70 L bioreactors, respectively. The highest lipid content (43.25%) and lipid yield (1243.98 mg/L) were acquired with the combination of 10 g/L sodium chloride and acetate. Moreover, the qualities of biodiesel, cetane number, saponification value, iodine value, and cold filter plugging point complied with the standards set by the National Petroleum Agency (ANP255), Standard ASTMD6751, and European Standard (EN 14214).
authors.affiliation: Key Laboratory of Algal Biology, Institute of Hydrobiology, University of Chinese Academy of Sciences, Wuhan 430072, China.
authors.forename: XuPing
authors.initials: X
authors.lastname: Zhou
authors.forename: Ling
authors.initials: L
authors.lastname: Xia
authors.forename: HongMei
authors.initials: H
authors.lastname: Ge
authors.forename: Delu
authors.initials: D
authors.lastname: Zhang
authors.forename: ChunXiang
authors.initials: C
authors.lastname: Hu
mesh_terms: D000085:Acetates / Q000494:pharmacology; D056804:Biofuels / Q000382:microbiology*; D018533:Biomass; D001709:Biotechnology / Q000295:instrumentation / Q000379:methods*; D002708:Chlorella / Q000187:drug effects / Q000378:metabolism*; D005227:Fatty Acids / Q000378:metabolism; D005240:Feasibility Studies; D050356:Lipid Metabolism / Q000187:drug effects; D008055:Lipids / Q000096:biosynthesis; D058086:Microalgae / Q000187:drug effects / Q000378:metabolism*; D058433:Photobioreactors / Q000382:microbiology; D012965:Sodium Chloride / Q000494:pharmacology; D014508:Urea / Q000494:pharmacology
chemical_list: D000085:Acetates; D056804:Biofuels; D005227:Fatty Acids; D008055:Lipids; D012965:Sodium Chloride; D014508:Urea