Effect of nitrogen source on growth and lipid accumulation in Scenedesmus abundans and Chlorella ellipsoidea
Abstract
Discovering microalgae strains containing a high lipid yield and adequate fatty acid composition is becoming a crucial fact in algae-oil factories. In this study, two unknown strains, named Scenedesmus abundans and Chlorella ellipsoidea, have been tested for their response to different nitrogen sources, in order to determine its influence in the production of lipids. For S. abundans, autotrophic culture with ammonium nitrate offers the maximum lipid yield, obtaining up to 3.55 mg L(-1) d(-1). For C. ellipsoidea, heterotrophic culture with ammonium nitrate has been shown to be the best condition, reaching a lipid production of 9.27 mg L(-1) d(-1). Moreover, fatty acid composition obtained from these cultures meets international biodiesel standards with an important amount of C18:1, achieving 70% of total fatty acids and thus representing a potential use of these two strains at an industrial scale.
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The oxidation state of nitrogen source (NH4 or NO3) can significantly affect biomass yield; use of NO3 as a nitrogen source requires extra energy and reduces biomass yield.
“The oxidation state of nitrogen source (i.e., NH4 or NO3) can significantly affect biomass yield [40]. Generally, the use of NO3 as a nitrogen source requires extra energy and reduces biomass yield.”
From Factors Affecting Microalgae Production for Biofuels and the Potentials of Chemometric Methods in Assessing and Optimizing Productivity (2019) · cites this paper as [40]
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- Authors
- González-Garcinuño, Á., Tabernero, A., Sánchez-Álvarez, J. M., Martin del Valle, E. M., & Galán, M. A.
- Affiliations
- Universidad de Salamanca (ES)
- ORCID
- Tabernero, Antonio
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2014-12
- Volume
- 173
- Pages
- 334-341
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2119438653
- Cited by
- 50
- References
- 32
- Citations by year
- 2026: 5 · 2025: 3 · 2024: 3 · 2023: 3 · 2022: 6 · 2021: 3 · 2020: 6 · 2019: 5 · 2018: 2 · 2017: 8 · 2016: 2 · 2015: 3
- FWCI
- 1.43
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
- Keywords
- nitrogen source, lipid accumulation, Scenedesmus abundans, Chlorella ellipsoidea, microalgae, ammonium nitrate, autotrophic culture, heterotrophic culture, fatty acid composition, biodiesel feedstock, oleaginous microalgae
- MeSH terms
- Chlorella, Culture Media, Fatty Acids, Kinetics, Nitrates, Nitrogen, Biomass, Scenedesmus, Lipid Metabolism, Biofuels
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