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Abstract
Microalgae are thought to be prospective sources for a number of high value added compounds, including lipids and carbohydrates. In addition to biomass productivity and growth parameters, these two compounds are critical for determining the economic viability of producing biofuels from microalgae. Adjustment of culture parameters such as nutrients concentrations and light colors can boost biomass and biochemical composition, resulting in enhanced microalgae biofuels generation. In view of this, the present research’s aim was to examine the impact of color of light and nitrogen concentrations on the growth parameters, lipids and carbohydrates of Pavlova sp. For nitrogen concentrations, results indicate that Pavlova sp. achieves higher lipids 84.17 mg/g under total nitrogen deprivation and higher carbohydrates 16.85 µg/mL under nitrogen replete conditions. The experiment of illumination regimes demonstrated that multichromatic light generated higher biomass 70 mg/L than monochromatic light. In contrast, red and blue light produced the highest lipid 93.52 and 61.97 mg/g and carbohydrate contents 29.53 and 19.74 µg/mL compared to white light 93.52 and 61.97 mg/g. According to our results, we suggested two-stage of cultivation to improve both biomass, lipids and carbohydrates productivities of Pavlova sp., this cultivation strategy makes this species a potential candidate for biofuels production.
Disclosure statement
No potential conflict of interest was reported by the authors.