Green City Technology Institute, Korea Institute of Science and Technology, Seoul, 136-791, South Korea.
Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, Goyang-si, 411-712, South Korea.
Environ Sci Pollut Res Int. 2016 Sep;23(17):17831-9. doi: 10.1007/s11356-016-6971-z. Epub 2016 Jun 1.
In this study, the effect of flue gas CO2 on growth, lipid production, and fatty acid composition of a green microalga Acutodesmus obliquus KGE 30 was investigated. The highest growth rate (0.46 g L(-1) and μmax = 1.09 day(-1)), total inorganic carbon removal (95.9 mg L(-1)), and lipid productivity (20.1 mg L(-1) day L(-1)) was obtained at 14.1 % CO2 after 4 days of cultivation. In a semicontinuous batch reactor, the highest biomass production (1.19 g L(-1)) was achieved after 12 days with continuous injection of flue gas CO2. Compared with synthetic CO2, fatty acid methyl ester analysis showed that the amount of unsaturated fatty acid increased by 19.2 % with 14.1 % flue gas CO2. The application of flue gas CO2 improved biomass production and lipid productivity in A. obliquus. The current investigation demonstrated that the use of flue gas CO2 could reduce the cost of microalgae biomass production for better biofuel generation.
在这项研究中，考察了烟气 CO2 对斜生栅藻 Acutodesmus obliquus KGE 30 的生长、油脂生产和脂肪酸组成的影响。在培养 4 天后，14.1%的 CO2 条件下，藻的生长率最高（0.46 g/L 和 μmax=1.09 天-1），总无机碳去除率（95.9 mg/L）和油脂生产力（20.1 mg/L 天）最高。在半连续批量反应器中，连续注入烟气 CO2 12 天后，藻的生物量最高（1.19 g/L）。与合成 CO2 相比，脂肪酸甲酯分析表明，14.1%的烟气 CO2 使不饱和脂肪酸的含量增加了 19.2%。烟气 CO2 的应用提高了斜生栅藻的生物量和油脂生产力。本研究表明，利用烟气 CO2 可以降低微藻生物量生产的成本，从而更好地生产生物燃料。
