Mutual effect of sodium and magnesium on the cultivation of microalgae Auxenochlorella protothecoides

Ece Polat, Ebubekir Yüksel, Mahmut Altınbaş*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Microalgae are a sustainable energy source because of their lipid storage capacity. However, the cultivation of microalgae requires optimization to produce a high biomass and lipid content. Stressing the cell is a common approach that is applied to increase the lipid content of the algae. Within this context, sodium chloride (NaCl) stress and magnesium (Mg2+) limitations were applied individually and mutually to understand their potential effects on biomass, lipid quantity, and the fatty acid methyl esters (FAME) profile of Auxenochlorella protothecoides. Saturated fatty acid (SFA) contents as high as 43.9% were obtained at 0 mg L−1 Mg2+ with 5 g L−1 NaCl. The highest linoleic acid content (35.2%) was obtained at 0.3 mg L−1 Mg2+ with 2.5 g L−1 NaCl. However, the highest biomass was achieved at 18.5 mg L−1 Mg2+ with 5.0 g L−1 NaCl according to surface response methodology. These optimization data could be useful for producing a feasible and sustainable biodiesel production strategy with high biomass and lipid productivity.

Original languageEnglish
Article number105441
JournalBiomass and Bioenergy
Publication statusPublished - Jan 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd


This work was supported by the Research Fund of the Istanbul Technical University (Project Number: 40564 ).

FundersFunder number
Istanbul Teknik Üniversitesi40564


    • Lipid
    • Magnesium-limitation
    • Microalgae
    • Mutual effect
    • Sodium chloride stress


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