ABSTRACT
Effect of various flue gas CO2 concentrations (5%, 10% and 14.1%) on growth rate and biochemical properties of a green microalga Scenedesmus obliquus was investigated. S. obliquus showed the highest biomass production and growth rate (0.36 g L−1 and μmax = 1.00 day−1), total inorganic carbon removal (35.8 mg L−1), lipid productivity (9.9 mg L−1 day) and carbohydrate productivity (10.3 mg L−1 day) with 14.1% CO2 after 8 days of cultivation. Fatty acid methyl ester analysis revealed that the palmitic and oleic acid contents were increased up to 5% and 7% with 14.1% CO2, respectively. Application of flue gas CO2 enhanced the growth along with lipid and carbohydrate productivity of S. obliquus, which can be exploited for reducing the CO2 concentration.
Acknowledgements
The authors would like to thank Sanghyun Park form KIST for valuable work with the algal cultures.
Disclosure statement
No potential conflict of interest was reported by the authors.