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Effect of High Concentrations of CO2 on the Cell Density, Lipid Content and Fatty Acid Components of Nannochloropsis oceanica
Science Discovery
Volume 4, Issue 2, April 2016, Pages: 122-128
Received: May 17, 2016; Published: May 18, 2016
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Authors
Wang Yuejie, College of Environmental Science and Engineering, Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
Meng Fanping, College of Environmental Science and Engineering, Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
Cui Hongwu, College of Environmental Science and Engineering, Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
Duan Weiyan, College of Environmental Science and Engineering, Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
Yi Xiaoyan, College of Environmental Science and Engineering, Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China
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Abstract
In order to evaluate the capability of Nannochloropsis oceanica to product biodiesel, the cell density, lipid content and fatty acid components of N. oceanica under different CO2 concentrations were analized. The results indicated that the cell density and lipid content of N. oceanica were increased under 5% CO2, but the growth of N. oceanica was inhibited under 10% and 15% CO2. Over 88% of the N. oceanica lipids produced consisted of C16 ~ C18 fatty acids and the concentration of unsaturated fatty acids (>69%) is high and suitable for biofuel production. The highest content of eicosapentaenoic acid (EPA) was also obtained under 5% CO2. The present results suggested that N. oceanica was suitable biodiesel feedstock and the maximum economic effectiveness will be obtained using flue gas containing 5% CO2 in the cultivation of N. oceanica.
Keywords
Nannochloropsis oceanica, CO2 Concentrations, Fatty Acid Components, Biodiesel, EPA
To cite this article
Wang Yuejie, Meng Fanping, Cui Hongwu, Duan Weiyan, Yi Xiaoyan, Effect of High Concentrations of CO2 on the Cell Density, Lipid Content and Fatty Acid Components of Nannochloropsis oceanica, Science Discovery. Vol. 4, No. 2, 2016, pp. 122-128. doi: 10.11648/j.sd.20160402.21
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