Growth and hydrocarbon production of microalga Botryococcus braunii in bubble column photobioreactors
Abstract
Microalga Botryococcus braunii, which produces high levels of liquid hydrocarbons called botryococcenes, was cultivated in bubble column photobioreactors. Algal cells, adapted to low irradiance (3 klx) in the preculture, showed lower biomass and hydrocarbons productivity in the photobioreactor illuminated at high irradiance (10 klx) due to the effects of photoinhibition. The degree of photoinhibition was reduced by partial shading, the lighted volume ratio being varied from 25 to 100%. The algal cells adapted to high irradiance in the preculture showed a high biomass productivity at 10 klx: the cell concentration reached higher than 7 kg/m3 and the hydrocarbon content was 50% based on cell dry weight. Hydrocarbon production kinetics of this alga in the linear growth phase was found to be growth-associated irrespective of the experimental conditions of illumination and preculture.
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Some Botryococcus spp. have up to 50% of their dry mass stored as long-chain hydrocarbons.
“some Botryococcus spp. have been identified that have up to 50% of their dry mass stored as long-chain hydrocarbons [19].”
From Biofuels from algae: Challenges and potential (2010) · cites this paper as [19]
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- Authors
- Kojima, E., & Zhang, K.
- Affiliations
- University of Tsukuba (JP)
- Corresponding author
- Kojima, Eiichi
- ORCID
- Zhang, Kai
- Venue
- Journal of Bioscience and Bioengineering
- Publisher
- Elsevier BV
- Published
- 1999-06
- Volume
- 87
- Issue
- 6
- Pages
- 811-815
- ISSN
- 1347-4421 (ISSN-L)
- 1389-1723
- OpenAlex
- W2039884232
- Cited by
- 76
- References
- 21
- Citations by year
- 2026: 3 · 2025: 1 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 5 · 2020: 5 · 2019: 8 · 2018: 3 · 2017: 7 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 4 · 2012: 6
- FWCI
- 1.32
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Bioscience and Bioengineering (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- Botryococcus braunii, botryococcenes, bubble column photobioreactor, photoinhibition, partial shading, biomass productivity, microalgae cultivation
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