Enhanced biomass production and lipid accumulation of Picochlorum atomus using light-emitting diodes (LEDs)
Abstract
The effects of light-emitting diode (LED) wavelength, light intensity, nitrate concentration, and time of exposure to different LED wavelength stresses in a two-phase culture on lipid production were evaluated in the microalga, Picochlorum atomus. The biomass produced by red LED light was higher than that produced by purple, blue, green, or yellow LED and fluorescent lights from first phase of two-phase culture. The highest lipid production of P. atomus was 50.3% (w/w) with green LED light at 2days of second phase as light stress. Fatty acid analysis of the microalgae showed that palmitic acid (C16:0) and linolenic acid (C18:3) accounted for 84-88% (w/w) of total fatty acids from P. atomus. The two-phase culture of P. atomus is suitable for biofuel production due to higher lipid productivity and favorable fatty acid composition.
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Certain microalgae have demonstrated sensitivity to green light, resulting in either a substantial inhibition or promotion of lipid accumulation.
“Nevertheless, it is worth noting that certain microalgae have demonstrated sensitivity to green light, resulting in either a substantial inhibition or promotion of lipid accumulation [147, 148].”
From Microalgae biofuels: illuminating the path to a sustainable future amidst challenges and opportunities (2024) · cites this paper as [148]
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“Neverthe-less, it is worth noting that certain microalgae have demonstrated sensitivity to green light, resulting in either a substantial inhibition or promotion of lipid accumulation [147, 148].”
BackgroundMultilateral Approach on Enhancing Economic Viability of Lipid Production from Microalgae: A Review
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- Authors
- Ra, C. H., Kang, C.-H., Jung, J.-H., Jeong, G.-T., & Kim, S.-K.
- Affiliations
- Pukyong National University (KR)
- Busan TechnoPark (KR)
- Corresponding author
- Kim, Sung-Koo
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2016-10
- Volume
- 218
- Pages
- 1279-1283
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2487163937
- Cited by
- 33
- References
- 23
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 7 · 2020: 6 · 2019: 3 · 2018: 6 · 2017: 2
- FWCI
- 1.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Oceans and Fisheries
- 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 › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Keywords
- microalgae, light-emitting diodes, LED wavelength, light intensity, nitrate content, two-phase culture, lipid accumulation, biomass production, fatty acid composition, palmitic acid, linolenic acid, biofuel production
- MeSH terms
- Chlorophyta, Light, Nitrates, Plant Oils, Biomass, Lipid Metabolism, Biofuels, Microalgae
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