An unconventional two-stage cultivation strategy to increase the lipid content and enhance the fatty acid profile on Chlorella minutissima biomass cultivated in a novel internal light integrated photobioreactor aiming at biodiesel production.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorAmaral, Mateus de Souza-
Autor(es): dc.creatorLoures, Carla Cristina Almeida-
Autor(es): dc.creatorPedro, Guilherme Arantes-
Autor(es): dc.creatorReis, Cristiano Eduardo Rodrigues-
Autor(es): dc.creatorCastro, Heizir Ferreira de-
Autor(es): dc.creatorNaves, Fabiano Luiz-
Autor(es): dc.creatorSilva, Messias Borges-
Autor(es): dc.creatorPrata, Arnaldo Márcio Ramalho-
Data de aceite: dc.date.accessioned2025-08-21T15:44:26Z-
Data de disponibilização: dc.date.available2025-08-21T15:44:26Z-
Data de envio: dc.date.issued2023-05-23-
Data de envio: dc.date.issued2023-05-23-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/16649-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0960148120306169-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.renene.2020.04.084-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1022966-
Descrição: dc.descriptionBiodiesel quality is dependent upon the fatty acids distribution of the raw material used in the trans/ esterification reactions. While microalgae cells are regarded as potential oil suppliers for the biodiesel production chain, a common criticism is related to the low lipid productivities and often to a poor fatty acid distribution. In the present work we propose to submit microalgal cultivation to a second stage with nutritional stress by a simple addition of a 70% nitrate source depleted medium at the beginning of stationary phase, without harvesting cells, saving time and water. Chlorella minutissima was cultivated in a novel unconventional photobioreactor, named Internally Illuminated Integrated Photobioreactor (ILI- PBR), to verify the efficiency of the proposed strategy. Biomass concentration, lipid content and volu- metric lipids productivity increased 24.9%, 120.7% and 55.6%, respectively, from Stage 1 to Stage 2, when ILI-PBR was illuminated by constant blue LED and 0.5 vvm of aeration. The fatty acid profiles, evaluated in terms of LED illumination (white, red and blue), showed a predominance of palmitic acid in all cases (59.49%, 57.28% and 46.51%, respectively), which allowed to enhance some biodiesel properties such as cetane number, cold filter plugging point, density and kinematic viscosity, according to international specifications.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectMicroalgae-
Palavras-chave: dc.subjectBioreactor-
Título: dc.titleAn unconventional two-stage cultivation strategy to increase the lipid content and enhance the fatty acid profile on Chlorella minutissima biomass cultivated in a novel internal light integrated photobioreactor aiming at biodiesel production.-
Aparece nas coleções:Repositório Institucional - UFOP

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