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AuthorSchipper K.
AuthorAl Muraikhi M.
AuthorAlghasal G.S.H.S.
AuthorSaadaoui I.
AuthorBounnit T.
AuthorRasheed R.
AuthorDalgamouni T.
AuthorAl Jabri H.M.S.J.
AuthorWijffels R.H.
AuthorBarbosa M.J.
Available date2020-04-27T08:34:20Z
Publication Date2019
Publication NameJournal of Applied Phycology
ISSN9218971
URIhttp://dx.doi.org/10.1007/s10811-019-01763-3
URIhttp://hdl.handle.net/10576/14568
AbstractCO2 fixation by phototrophic microalgae and cyanobacteria is seen as a possible global carbon emissions reducer; however, novel microalgae and cyanobacterial strains with tolerance to elevated temperatures and CO2 concentrations are essential for further development of algae-based carbon capture. Four novel strains isolated from the Arabian Gulf were investigated for their thermotolerance and CO2-tolerance, as well as their carbon capture capability. Two strains, Leptolyngbya sp. and Picochlorum sp., grew well at 40 °C, with productivities of 106.6 ± 10.0 and 87.5 ± 2.1 mg biomass L−1 d−1, respectively. Tetraselmis sp. isolate showed the highest biomass productivity and carbon capture rate of 157.7 ± 10.3 mg biomass L−1 d−1 and 270.8 ± 23.9 mg CO2 L−1 d−1, respectively, both at 30 °C. Under 20% CO2, the biomass productivity increased over 2-fold for both Tetraselmis and Picochlorum isolates, to 333.8 ± 41.1 and 244.7 ± 29.5 mg biomass L−1 d−1. These two isolates also presented significant amounts of lipids, up to 25.6 ± 0.9% and 28.0 ± 2.0% (w/w), as well as presence of EPA and DHA. Picochlorum sp. was found to have a suitable FAME profile for biodiesel production. Both Tetraselmis and Picochlorum isolates showed promising characteristics, making them valuable strains for further investigation towards commercial applications and CO2 capture.
SponsorThe authors would like to thank Mahroof Eroth, Dr. Ahmed Easa, and Dr. Abdulrahman Al Muftah from Qatar University, Andy Selwood from Cawthron Institute, and the QDVC team for their support. This work was supported by QDVC and Qatar University [Project QUEX-CAS-QDVC-14/15-7].
Languageen
PublisherSpringer Netherlands
SubjectCarbon capture
SubjectCO2
SubjectCyanobacteria
SubjectMicroalgae
SubjectThermotolerance
TitlePotential of novel desert microalgae and cyanobacteria for commercial applications and CO2 sequestration
TypeArticle
Pagination2231-2243
Issue Number4
Volume Number31


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