Changes in growth performance and biochemical composition of Nannochloropsis oceanica in response to elevated CO2 concentrations

We studied the growth performance and biochemical composition (including
soluble carbohydrates, proteins, lipids, phenols, chlorophyll-a, carotenoid and the C/N-ratio) of Nannochloropsis oceanica under various CO2 concentrations. The cell density of N. oceanic increased with a rise in CO2 concentration and got the high level at a CO2 concentration of 1000ppm or 1500ppm. In addition, except the proteins all tested biochemical composition were significantly affected by CO2 concentration (0.01 <P< 0.05; one factorial ANOVA). However comparing with other biochemical components, the contents of phenols in N. oceanic showed the opposite trends (P<0.01; one factorial ANOVA). In general, the short-term stimulation of elevated CO2 concentration to N. oceanic can promote cell division and synthesis of most of biochemical components (expect proteins and phenols).

Liang C., Shi L., Xu D. & Ye N., 2018. Changes in growth performance and biochemical composition of Nannochloropsis oceanica in response to elevated CO2 concentrations. 2018 International Conference on Advanced Chemical Engineering and Environmental Sustainability (ICACEES 2018) 79-85. Article.

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