title: Lipid production by a CO₂-tolerant green microalga, Chlorella sp. MRA-1.
abstract: Since CO2 concentrations in industrial flue gases are usually 10%-20%, one of the prerequisites for efficient CO2 removal by algae is the level of tolerance of microalgal species to exposure to high concentrations of CO2. A newly isolated microalgal strain, Chlorella sp. MRA-1, could retain growth with high concentrations of CO2 up to 15%. The highest lipid productivity for Chlorella sp. MRA-1 was 0.118 g/l/day with a 5% CO2 concentration. Octadecenoic acid and hexadecanoic acid, the main components of biodiesel, accounted for 70% of the total fatty acids. A lipid content of 52% of dry cell weight was achieved with limited amounts of nitrogen. Chlorella sp. MRA-1 seems to be an ideal candidate for biodiesel production when cultured with high concentrations of CO2.
authors.affiliation: College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China, College of Science, Shandong University of Science and Technology, Qingdao 266510, P. R. China.
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Zheng
authors.forename: Cheng
authors.initials: C
authors.lastname: Yuan
authors.forename: Junhan
authors.initials: J
authors.lastname: Liu
authors.forename: Guangrong
authors.initials: G
authors.lastname: Hu
authors.forename: Fuli
authors.initials: F
authors.lastname: Li
mesh_terms: D000220:Adaptation, Biological; D002245:Carbon Dioxide / Q000378:metabolism*; D002708:Chlorella / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*; D003470:Culture Media / Q000737:chemistry; D005227:Fatty Acids / Q000096:biosynthesis / Q000737:chemistry; D008055:Lipids / Q000096:biosynthesis*; D009584:Nitrogen / Q000378:metabolism
chemical_list: D003470:Culture Media; D005227:Fatty Acids; D008055:Lipids; D002245:Carbon Dioxide; D009584:Nitrogen