Article

 

Photosynthetic accumulation of carbon storage compounds under CO2 enrichment by the thermophilic cyanobacterium Thermosynechococcus elongatus Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/7d278t929

Descriptions

Attribute NameValues
Alternative Title
Creator
Abstract
  • The growth characteristics of Thermosynechococcus elongatus on elevated CO₂ were studied in a photobioreactor. Cultures were able to grow on up to 20% CO₂. The maximum productivity and CO₂ fixation rates were 0.09 ± A 0.01 and 0.17 ± A 0.01 mg ml⁻¹ day⁻¹, respectively, for cultures grown on 20% CO₂. Three major carbon pools-lipids, polyhydroxybutyrates (PHBs), and glycogen-were measured. These carbon stores accounted for 50% of the total biomass carbon in cultures grown on atmospheric CO₂ (no supplemental CO₂), but only accounted for 30% of the total biomass carbon in cultures grown on 5-20% CO₂. Lipid content was approximately 20% (w/w) under all experimental conditions, while PHB content reached 14.5% (w/w) in cultures grown on atmospheric CO₂ and decreased to approximately 2.0% (w/w) at 5-20% CO₂. Glycogen levels did not vary significantly and remained about 1.4% (w/w) under all test conditions. The maximum amount of CO₂ sequestered over the course of the nine-day chemostat experiment was 1.15 g l⁻¹ in cultures grown on 20% CO₂.
  • Keywords: Mass transfer, Fixation, Microalgae, Dioxide, Biofuels, Glycogen, Poly beta hydroxybutyrate, Photobioreactor, Bioreactor, Purification
Resource Type
DOI
Date Available
Date Issued
Citation
  • Eberly, J., & Ely, R. (2012). Photosynthetic accumulation of carbon storage compounds under CO2 enrichment by the thermophilic cyanobacterium thermosynechococcus elongatus. Journal of Industrial Microbiology & Biotechnology, 39(6), 843-850. doi: 10.1007/s10295-012-1092-2
Journal Title
Journal Volume
  • 39
Journal Issue/Number
  • 6
Academic Affiliation
Rights Statement
Funding Statement (additional comments about funding)
  • This work was supported in part by the DOD/ASEE SMART scholarship program. Special thanks to Markael Luterra for editorial assistance.
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Items