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

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniv Fed Ouro Preto-
Autor(es): dc.contributorCtr Fed Educ Tecnol Celso Suckow Fonseca-
Autor(es): dc.contributorUniv Fed Sao Joao del Rei-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorAmaral, Mateus S.-
Autor(es): dc.creatorLoures, Carla C. A.-
Autor(es): dc.creatorPedro, Guilherme A.-
Autor(es): dc.creatorReis, Cristiano E. R.-
Autor(es): dc.creatorDe Castro, Heizir E.-
Autor(es): dc.creatorNaves, Fabiano L.-
Autor(es): dc.creatorSilva, Messias B. [UNESP]-
Autor(es): dc.creatorPrata, Arnaldo M. R.-
Data de aceite: dc.date.accessioned2022-02-22T00:05:50Z-
Data de disponibilização: dc.date.available2022-02-22T00:05:50Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.renene.2020.04.084-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/195443-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/195443-
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 (ILIPBR), to verify the efficiency of the proposed strategy. Biomass concentration, lipid content and volumetric 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. (C) 2020 Elsevier Ltd. All rights reserved.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Sao Paulo, Engn Sch Lorena, Lorena, SP, Brazil-
Descrição: dc.descriptionUniv Fed Ouro Preto, Inst Exact & Biol Sci, Dept Chem, Lab Technol & Environm Chem, Ouro Preto, MG, Brazil-
Descrição: dc.descriptionCtr Fed Educ Tecnol Celso Suckow Fonseca, Angra Dos Reis, RJ, Brazil-
Descrição: dc.descriptionUniv Fed Sao Joao del Rei, Alto Paraopeba Campus, Ouro Branco, MG, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Engn Fac Guaratingueta, Guaratingueta, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Engn Fac Guaratingueta, Guaratingueta, SP, Brazil-
Formato: dc.format591-601-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationRenewable Energy-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectChlorella minutissima-
Palavras-chave: dc.subjectTwo-stage cultivation-
Palavras-chave: dc.subjectMicroalgae-
Palavras-chave: dc.subjectBioreactor-
Palavras-chave: dc.subjectFatty acid-
Palavras-chave: dc.subjectBiodiesel-
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-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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