Evaluation of native microalgae from Tunisia using the pulse-amplitude-modulation measurement of chlorophyll fluorescence and a performance study in semi-continuous mode for biofuel production.
Biochemical composition
Biofuel
Chlorophyll fluorescence
Microalgae
Photosynthetic parameters
Productivity
Journal
Biotechnology for biofuels
ISSN: 1754-6834
Titre abrégé: Biotechnol Biofuels
Pays: England
ID NLM: 101316935
Informations de publication
Date de publication:
2019
2019
Historique:
received:
03
03
2019
accepted:
02
05
2019
entrez:
22
5
2019
pubmed:
22
5
2019
medline:
22
5
2019
Statut:
epublish
Résumé
Microalgae are attracting much attention as a promising feedstock for renewable energy production, while simultaneously providing environmental benefits. So far, comparison studies for microalgae selection for this purpose were mainly based on data obtained from batch cultures, where the lipid content and the growth rate were the main selection parameters. The present study evaluates the performance of native microalgae strains in semi-continuous mode, considering the suitability of the algal-derived fatty acid composition and the saponifiable lipid productivity as selection criteria for microalgal fuel production. Evaluation of the photosynthetic performance and the robustness of the selected strain under outdoor conditions was conducted to assess its capability to grow and tolerate harsh environmental growth conditions. In this study, five native microalgae strains from Tunisia (one freshwater and four marine strains) were isolated and evaluated as potential raw material to produce biofuel. Firstly, molecular identification of the strains was performed. Then, experiments in semi-continuous mode at different dilution rates were carried out. The local microalgae strains were characterized in terms of biomass and lipid productivity, in addition to protein content, and fatty acid profile, content and productivity. The marine strain Selection of native microalgae allows identifying potential strains suitable for use in the production of biofuels. The selected strain
Sections du résumé
BACKGROUND
BACKGROUND
Microalgae are attracting much attention as a promising feedstock for renewable energy production, while simultaneously providing environmental benefits. So far, comparison studies for microalgae selection for this purpose were mainly based on data obtained from batch cultures, where the lipid content and the growth rate were the main selection parameters. The present study evaluates the performance of native microalgae strains in semi-continuous mode, considering the suitability of the algal-derived fatty acid composition and the saponifiable lipid productivity as selection criteria for microalgal fuel production. Evaluation of the photosynthetic performance and the robustness of the selected strain under outdoor conditions was conducted to assess its capability to grow and tolerate harsh environmental growth conditions.
RESULTS
RESULTS
In this study, five native microalgae strains from Tunisia (one freshwater and four marine strains) were isolated and evaluated as potential raw material to produce biofuel. Firstly, molecular identification of the strains was performed. Then, experiments in semi-continuous mode at different dilution rates were carried out. The local microalgae strains were characterized in terms of biomass and lipid productivity, in addition to protein content, and fatty acid profile, content and productivity. The marine strain
CONCLUSIONS
CONCLUSIONS
Selection of native microalgae allows identifying potential strains suitable for use in the production of biofuels. The selected strain
Identifiants
pubmed: 31110560
doi: 10.1186/s13068-019-1461-4
pii: 1461
pmc: PMC6511200
doi:
Types de publication
Journal Article
Langues
eng
Pagination
119Déclaration de conflit d'intérêts
Not applicable.Not applicable.The authors declare that they have no competing interests.
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