A comparison of harvesting and drying methodologies on fatty acids composition of the green microalga Scenedesmus obliquus

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dc.creatorOliveira, Carlos Yure Barbosa de
dc.creatorLopes, Rafael Garcia
dc.creatorCella, Herculano
dc.creatorMenezes, Rafael Silva
dc.creatorSoares, Aline Terra
dc.creatorAntoniosi Filho, Nelson Roberto
dc.creatorDerner, Roberto Bianchini
dc.creatorFreitas, Thayna Lye Viegas
dc.date.accessioned2024-05-21T13:59:15Z
dc.date.available2024-05-21T13:59:15Z
dc.date.issued2020
dc.description.abstractHarvesting and drying processes are still obstacles in the microalgae production chain. In this study, a combination of different harvesting and drying methods for Scenedesmus obliquus was proposed. S. obliquus was cultivated in a pond raceway for 15 days until reaching stationary phase. The culture was separated by different harvesting methods (centrifugation and flocculation) and drying methods (freezing, freeze-drying and oven drying), each combination in triplicate. Flocculation did not influence FAME yield of S. obliquus, except when the biomass was dried in an oven. The biomass that was only frozen had the lowest FAME content due to the presence of reactive water in the biomass. In contrast, frozen biomass had higher content of saturated and monosaturated fatty acids; freeze-drying or oven drying caused an enrichment of the polyunsaturated fatty acids content. In conclusion, if the biomass will be used to extract polyunsaturated fatty acids, freeze-drying would be more appropriate. On the other hand, if the purpose of the biomass is to produce biodiesel, the best process would be to just freeze the biomass.
dc.identifier.citationOLIVEIRA, Carlos Yure Barbosa de et al. A comparison of harvesting and drying methodologies on fatty acids composition of the green microalga Scenedesmus obliquus. Biomass and Bioenergy, Amsterdam, v. 132, e105437, 2020. DOI: 10.1016/j.biombioe.2019.105437. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0961953419303861?via%3Dihub. Acesso em: 26 abr. 2024.
dc.identifier.doi10.1016/j.biombioe.2019.105437
dc.identifier.issne- 1873-2909
dc.identifier.issn0961-9534
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0961953419303861?via%3Dihub
dc.language.isoeng
dc.publisher.countryHolanda
dc.publisher.departmentInstituto de Química - IQ (RMG)
dc.rightsAcesso Restrito
dc.titleA comparison of harvesting and drying methodologies on fatty acids composition of the green microalga Scenedesmus obliquus
dc.typeArtigo

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