Screening Microalgae Strains for Biodiesel Production: Lipid Productivity and Estimation of Fuel Quality Based on Fatty Acids Profiles as Selective Criteria
By I. A. Nascimento, Sheyla Santa Izabel Marques, I. Cabanelas, S. A. Pereira, J. I. Druzian, C. O. Souza, Daniel Vích, Gilson Correia de Carvalho, M. A. Nascimento. Bioenergy Research, 2012
485 citations recorded by the source corpus.
The viability of algae-based biodiesel industry depends on the selection of adequate strains in regard to profitable yields and oil quality. This work aimed to bioprospecting and screening 12 microalgae strains by applying, as selective criteria, the volumetric lipid productivity and the fatty acid profiles, used for estimating the biodiesel fuel properties. Volumetric lipid productivity varied among strains from 22.61 to 204.91 mg l−1 day−1. The highest lipid yields were observed for Chlorella (204.91 mg l−1 day1) and Botryococcus strains (112.43 and 98.00 mg l−1 day−1 for Botryococcus braunii and Botryococcus terribilis, respectively). Cluster and principal components analysis analysis applied to fatty acid methyl esters (FAME) profiles discriminated three different microalgae groups according to their potential for biodiesel production. Kirchneriella lunaris, Ankistrodesmus fusiformis, Chlamydocapsa bacillus, and Ankistrodesmus falcatus showed the highest levels of polyunsaturated FAME, which incurs in the production of biodiesels with the lowest (42.47–50.52) cetane number (CN), the highest (101.33–136.97) iodine values (IV), and the lowest oxidation stability. The higher levels of saturated FAME in the oils of Chlamydomonas sp. and Scenedesmus obliquus indicated them as source of biodiesel with higher oxidation stability, higher CN (63.63–64.94), and lower IV (27.34–35.28). The third group, except for the Trebouxyophyceae strains that appeared in isolation, are composed by microalgae that generate biodiesel of intermediate values for CN, IV, and oxidation stability, related to their levels of saturated and monosaturated lipids. Thus, in this research, FAME profiling suggested that the best approach for generating a microalgae-biodiesel of top quality is by mixing the oils of distinct cell cultures.
Subfields: Biomedical Engineering, Molecular Biology, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/869d2d7622a4e6eeda9a4829a752a9742fcd3f0f
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Citations in the corpus
- Biodiesel from microalgae: The use of multi-criteria decision analysis for strain selection (2015, background): “The fatty acids contained in microalgae oil are: Free Fatty Acids (FFA), Monounsaturated Fatty Acids (MUFA), Polyunsaturated Fatty Acids (PUFA), and Saturated Fatty Acids (SUFA) [12].”
- Trends and novel strategies for enhancing lipid accumulation and quality in microalgae (2016, background): “Thus, it is important to develop strategies to improve the quality of microalgal lipids so that biodiesel can meet the standard specifications [147,148].”
- Fatty acids profiling: A selective criterion for screening microalgae strains for biodiesel production (2013, background): “Given the FA profile and its impact on the quality of produced biodiesel, it has been reported that C16:1 and C18:1 fatty acids (palmitoleic acid and oleic acid, respectively) are most favorable for biodiesel production [22,67].”
- Screening and evaluation of some green algal strains (Chlorophyceae) isolated from freshwater and soda lakes for biofuel production. (2015, background): “In recent studies, many equations based on FA composition have been built to predict the properties of biodiesel [22,51,67].”
- Microalgal Species Selection for Biodiesel Production Based on Fuel Properties Derived from Fatty Acid Profiles (2013, methodology): “5 Twelve species from [12]: Ankistrodesmus falcatus LC 25 ± 2 165 17.”