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Effects of Nitrogen Forms and Supply Mode on Lipid Production of Microalga Scenedesmus obliquus

Author

Listed:
  • Mei An

    (College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China)

  • Li Gao

    (SouthEast Water, 101 Wells Street, Frankston, VIC 3199, Australia)

  • Wen Zhao

    (College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China)

  • Weiguang Chen

    (College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China)

  • Ming Li

    (College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China)

Abstract

Optimization of the microalgae culture conditions could significantly reduce the production costs of microalgae-derived biodiesel. In the current study, a new process of adding different forms using the multiple small-dose method was employed. The effects of different forms of nitrogen (NaNO 3 , NH 4 Cl, and CH 4 N 2 O) and their concentrations (0.1, 0.5, 1, and 2 mg L −1 ) on the growth and lipid production of Scenedesmus obliquus were studied. Algae density and lipid production increased with increasing nitrogen concentration for all different forms of nitrogen except NH 4 Cl. The Scenedesmus obliquus growth was promoted by adding NaNO 3 and CH 4 N 2 O, but was inhibited by adding NH 4 Cl. Adding 2 mg N L −1 of CH 4 N 2 O daily yielded the highest cell density (1.7 × 10 7 cells mL −1 ) and lipid production (242.4 mg L −1 ). These conditions can thus maintain the biomass of Scenedesmus obliquus , increase its lipid accumulation, and decrease the costs of biodiesel production.

Suggested Citation

  • Mei An & Li Gao & Wen Zhao & Weiguang Chen & Ming Li, 2020. "Effects of Nitrogen Forms and Supply Mode on Lipid Production of Microalga Scenedesmus obliquus," Energies, MDPI, vol. 13(3), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:697-:d:317131
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    Citations

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    Cited by:

    1. Zheng, Heshan & Wang, Yu & Li, Shuo & Nagarajan, Dillirani & Varjani, Sunita & Lee, Duu-Jong & Chang, Jo-Shu, 2022. "Recent advances in lutein production from microalgae," Renewable and Sustainable Energy Reviews, Elsevier, vol. 153(C).
    2. Eldiehy, Khalifa S.H. & Gohain, Minakshi & Daimary, Niran & Borah, Doljit & Mandal, Manabendra & Deka, Dhanapati, 2022. "Radish (Raphanus sativus L.) leaves: A novel source for a highly efficient heterogeneous base catalyst for biodiesel production using waste soybean cooking oil and Scenedesmus obliquus oil," Renewable Energy, Elsevier, vol. 191(C), pages 888-901.
    3. Shimaa M. El Shafay & Ahmed Gaber & Walaa F. Alsanie & Mostafa E. Elshobary, 2021. "Influence of Nutrient Manipulation on Growth and Biochemical Constituent in Anabaena variabilis and Nostoc muscorum to Enhance Biodiesel Production," Sustainability, MDPI, vol. 13(16), pages 1-17, August.
    4. Joseph Christian Utomo & Young Mo Kim & Hyun Uk Cho & Jong Moon Park, 2020. "Evaluation of Scenedesmus rubescens for Lipid Production from Swine Wastewater Blended with Municipal Wastewater," Energies, MDPI, vol. 13(18), pages 1-11, September.
    5. Khawaja Muhammad Imran Bashir & Hyeon-Jun Lee & Sana Mansoor & Alexander Jahn & Man-Gi Cho, 2021. "The Effect of Chromium on Photosynthesis and Lipid Accumulation in Two Chlorophyte Microalgae," Energies, MDPI, vol. 14(8), pages 1-11, April.
    6. Rahul Prasad Singh & Priya Yadav & Indrajeet Kumar & Manoj Kumar Solanki & Rajib Roychowdhury & Ajay Kumar & Rajan Kumar Gupta, 2023. "Advancement of Abiotic Stresses for Microalgal Lipid Production and Its Bioprospecting into Sustainable Biofuels," Sustainability, MDPI, vol. 15(18), pages 1-36, September.

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