Development of lipid productivities under different CO2 conditions of marine microalgae Chlamydomonas sp. JSC4

• Published in: Bioresource technology Vol. 152; pp. 247 - 252
• Main Authors: Nakanishi, Akihito, Aikawa, Shimpei, Ho, Shih-Hsin, Chen, Chun-Yen, Chang, Jo-Shu, Hasunuma, Tomohisa, Kondo, Akihiko
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.01.2014; Elsevier
• Subjects: Algae; Autotrophic Processes - drug effects; Biodiesel; Biofuel production; Biological and medical sciences; Biomass; biomass production; Biotechnology; Carbon dioxide; Carbon Dioxide - pharmacology; cell growth; Chlamydomonas; Chlamydomonas - drug effects; Chlamydomonas - growth & development; Chlamydomonas - metabolism; coasts; Energy; fuel production; Fundamental and applied biological sciences. Psychology; High lipid productivity; Industrial applications and implications. Economical aspects; Lipids; Lipids - biosynthesis; Marine; Marine green alga; microalgae; Microalgae - drug effects; Microalgae - metabolism; oils; Optimization; Productivity; Salinity; Seawater - microbiology; Taiwan; ISEW, Taiwan; Taiwan; Marine green alga; Biodiesel; High lipid productivity; Chlamydomonas; Productivity; Chlorophyta; Algae; Carbon dioxide; Lipids; Marine alga; Microorganism; Chlorophyceae
• ISSN: 0960-8524; 1873-2976; 1873-2976
• DOI: 10.1016/j.biortech.2013.11.009

•Chlamydomonas sp. JSC4 was isolated from southern Taiwan sea coast.•Lipid productivity was assayed after cultivation under different CO2 concentrations.•Lipid productivity was 169.1mg/L/d as the best in most of the previous reports.•Result showed a potential to develop the system of microalga-based lipid production. Biodiesel production from microalgae has become a popular research topic. In this study, Chlamydomonas sp. JSC4 isolated from the southern coast of Taiwan was selected for a detailed study on cell growth and lipid accumulation under marine salinity (3.5% sea salt). Proper CO2 was supplied as the improvement of lipid productivity. Under the optimal condition, the highest lipid productivity was 169.1mg/L/d, which was significantly higher than those reported in current studies for marine green algae. To date, only very few studies have reported a marine algae strain with both high cell growth and lipid productivity. This study demonstrated that a newly isolated marine green alga Chlamydomonas sp. JSC4 would be a feasible oil producer due to its high biomass production and lipid productivity under marine salinity.