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Heterotrophic Cultivation of the Cyanobacterium Pseudanabaena sp. on Forest Biomass Hydrolysates toward Sustainable Biodiesel Production
Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45100 Ioannina, Greece.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0002-5285-1136
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0001-7500-2367
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Chemical Engineering.ORCID iD: 0000-0003-0079-5950
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2022 (English)In: Microorganisms, E-ISSN 2076-2607, Vol. 10, no 9, article id 1756Article in journal (Refereed) Published
Abstract [en]

Environmental pollution, greenhouse gas emissions, depletion of fossil fuels, and a growing population have sparked a search for new and renewable energy sources such as biodiesel. The use of waste or residues as substrates for microbial growth can favor the implementation of a biorefinery concept with reduced environmental footprint. Cyanobacteria constitute microorganisms with enhanced ability to use industrial effluents, wastewaters, forest residues for growth, and concomitant production of added-value compounds. In this study, a recently isolated cyanobacterium strain of Pseudanabaena sp. was cultivated on hydrolysates from pretreated forest biomass (silver birch and Norway spruce), and the production of biodiesel-grade lipids was assessed. Optimizing carbon source concentration and the (C/N) carbon-to-nitrogen ratio resulted in 66.45% w/w lipid content when microalgae were grown on glucose, compared to 62.95% and 63.79% w/w when grown on spruce and birch hydrolysate, respectively. Importantly, the lipid profile was suitable for the production of high-quality biodiesel. The present study demonstrates how this new cyanobacterial strain could be used as a biofactory, converting residual resources into green biofuel.

Place, publisher, year, edition, pages
MDPI, 2022. Vol. 10, no 9, article id 1756
Keywords [en]
cyanobacteria, Pseudanabaena sp., wood biomass, heterotrophic growth, lipid production, organosolv pretreatment, biodiesel
National Category
Ecology Microbiology Analytical Chemistry
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-93288DOI: 10.3390/microorganisms10091756ISI: 000857546600001PubMedID: 36144358Scopus ID: 2-s2.0-85138942309OAI: oai:DiVA.org:ltu-93288DiVA, id: diva2:1699579
Note

Validerad;2022;Nivå 2;2022-09-28 (joosat);

Available from: 2022-09-28 Created: 2022-09-28 Last updated: 2023-09-05Bibliographically approved

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Patel, AlokRova, UlrikaChristakopoulos, PaulMatsakas, Leonidas

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