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Spirulina cultivated under different light emitting diodes: Enhanced cell growth and phycocyanin production
Open accessAbstract
This study evaluated light emitting diodes (LEDs) as a light source in Spirulina sp. LEB 18 cultures in terms of growth parameters and biomass composition. Different photoperiods (partial and integral) and colors (blue, green, red and white) were assessed. Blue, green, red and white LEDs increased biomass productivity and maximum specific growth rate of such cultivations. The maximum biomass concentration (1.77 ± 0.02 g L-1) was obtained when red LEDs in integral light photoperiod were applied to cultivations. The biomass composition showed around 12.8% carbohydrates (w w-1), 57.4% proteins (w w-1) and 12.7% lipids (w w-1). The major fatty acids produced during cultivations were palmitic, linoleic and γ-linolenic. Green LEDs in partial light photoperiod promoted a higher concentration of phycocyanin (126.39 mg g biomass-1). The potential of LEDs as an energy source in Spirulina sp. LEB 18 cultures was demonstrated by the biomass and bioproducts photostimulation.
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“Considering the biomass density of 1.77 ± 0.02 g/L achieved in the experiments done by da Fontoura Prates et al. when they tested different wavelengths of light on Spirulina, the total calculated size of the necessary reactor would be around 4875 L, conserving mass and volume [53].”
From Biologically-Based and Physiochemical Life Support and In Situ Resource Utilization for Exploration of the Solar System—Reviewing the Current State and Defining Future Development Needs (2021) · cites this paper as [53]
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“Other minor notes, green light stimulated the highest phycocyanin concentration at 2.8 times the control, and green, red, and white LEDs stimulated increases in fatty acid concentrations [53].”
From Biologically-Based and Physiochemical Life Support and In Situ Resource Utilization for Exploration of the Solar System—Reviewing the Current State and Defining Future Development Needs (2021) · cites this paper as [53]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
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“Results indicated that when grown under red light exposed integrally, the cyanobacteria exhibited a growth rate twice that of the control under full fluorescent light, leading to a culture density of 1.77 ± 0.02 g/L [53].”
From Biologically-Based and Physiochemical Life Support and In Situ Resource Utilization for Exploration of the Solar System—Reviewing the Current State and Defining Future Development Needs (2021) · cites this paper as [53]
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Metadata
- Authors
- Prates, D. D. F., Radmann, E. M., Duarte, J. H., Morais, M. G. D., & Costa, J. A. V.
- Affiliations
- Universidade Federal do Rio Grande (BR)
- Corresponding author
- Costa, Jorge Alberto Vieira
- ORCID
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2018-05
- Volume
- 256
- Pages
- 38-43
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2790470672
- Cited by
- 153
- References
- 40
- Citations by year
- 2026: 13 · 2025: 14 · 2024: 28 · 2023: 29 · 2022: 24 · 2021: 19 · 2020: 11 · 2019: 11 · 2018: 3
- FWCI
- 2.54
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- CAPES
- CNPq
- MCTIC
- 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
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- Spirulina, light-emitting diodes, photoperiod, LED color, phycocyanin production, microalgae cultivation, biomass productivity, specific growth rate, fatty acid composition, gamma-linolenic acid, photostimulation, blue light, green light, red light
- MeSH terms
- Light, Photosynthesis, Phycocyanin, Biomass, Spirulina
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