title: Screening high oleaginous Chlorella strains from different climate zones.
abstract: In outdoor cultivation, screening strains adapted to a wide temperature range or suitable strains for different environmental temperatures is of great importance. In this study, triacylglycerol (TAG) content of 23 oil-producing Chlorella strains from different climate zones were analyzed by thin layer chromatography. Four selected Chlorella strains (NJ-18, NJ-7, NMX35N and NMX139N) with rather high TAG content had higher total lipid content compared with Chlorella vulgaris SAG 211-11b. In particular, NJ-18 displayed the highest TAG productivity among the four high oil-producing Chlorella strains. Accumulation of TAGs in strain NMX35N changed a little from 30 to 40°C, showing a desirable characteristic of accumulating TAGs at high temperatures. Our results demonstrated that NJ-18 and NMX35N had suitable fatty acid profiles and good adaption to low and high temperatures respectively. Therefore, cultivation of the two Chlorella strains together might be a good option for economic biodiesel production during the whole seasons of the year.
authors.affiliation: Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Xu
authors.forename: Hanhua
authors.initials: H
authors.lastname: Hu
mesh_terms: D061249:Batch Cell Culture Techniques; D002708:Chlorella / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism; D002855:Chromatography, Thin Layer; D002980:Climate; D005227:Fatty Acids / Q000378:metabolism; D016013:Likelihood Functions; D008055:Lipids / Q000096:biosynthesis*; D009566:Nitrates / Q000032:analysis; D009821:Oils / Q000378:metabolism; D013696:Temperature; D014280:Triglycerides / Q000378:metabolism
chemical_list: D005227:Fatty Acids; D008055:Lipids; D009566:Nitrates; D009821:Oils; D014280:Triglycerides
keywords: Biodiesel; Chlorella sp.; Fatty acids; Temperature; Triacylglycerol