LED power efficiency of biomass, fatty acid, and carotenoid production in Nannochloropsis microalgae
Abstract
The microalga Nannochloropsis produces high-value omega-3-rich fatty acids and carotenoids. In this study the effects of light intensity and wavelength on biomass, fatty acid, and carotenoid production with respect to light output efficiency were investigated. Similar biomass and fatty acid yields were obtained at high light intensity (150 μmol m-2 s-1) LEDs on day 7 and low light intensity (50 μmol m-2 s-1) LEDs on day 11 during cultivation, but the power efficiencies of biomass and fatty acid (specifically eicosapentaenoic acid) production were higher for low light intensity. Interestingly, low light intensity enhanced both, carotenoid power efficiency of carotenoid biosynthesis and yield. White LEDs were neither advantageous for biomass and fatty acid yields, nor the power efficiency of biomass, fatty acid, and carotenoid production. Noticeably, red LED resulted in the highest biomass and fatty acid power efficiency, suggesting that LEDs can be fine-tuned to grow Nannochloropsis algae more energy-efficiently.
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The fatty acid composition of microalgae is also affected by different light spectra.
“Moreover, the FAs composition of microalgae is also affected by the different light spectra [149–151].”
From Microalgae biofuels: illuminating the path to a sustainable future amidst challenges and opportunities (2024) · cites this paper as [151]
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References 39 · Cited by 78
- Authors
- Ma, R., Thomas-Hall, S. R., Chua, E. T., Eltanahy, E., Netzel, M. E., Netzel, G., Lu, Y., & Schenk, P. M.
- Affiliations
- The University of Queensland (AU)
- Mansoura University (EG)
- Xiamen University (CN)
- Corresponding author
- Schenk, Peer M.
- ORCID
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2018-03
- Volume
- 252
- Pages
- 118-126
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2779130030
- Cited by
- 78
- References
- 39
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 8 · 2023: 8 · 2022: 15 · 2021: 14 · 2020: 10 · 2019: 12 · 2018: 5
- FWCI
- 1.98
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- China Scholarship Council
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Keywords
- Nannochloropsis, LED lighting, light intensity, light wavelength, power efficiency, microalgal biomass, fatty acid production, eicosapentaenoic acid, carotenoid production, red LED, white LEDs, microalgae cultivation
- MeSH terms
- Carotenoids, Fatty Acids, Biomass, Stramenopiles, Microalgae
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