Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2022 |
| Outros Autores: | , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/32246 |
Resumo: | The present work aimed to prove, statistically, the influence of the concentration of nutrients from fossil waters on the growth kinetics and intracellular lipid accumulation in microalgae. The species Chlorella sp., Scenedesmus acuminatus, Nannochloropsis sp., Monoraphidium contortum and Pediastrum tetras were studied, which were isolated from the semiarid region of the Brazilian northeast and cultivated in a mixture composed of brackish groundwater and effluent from septic tanks. From the crops, the kinetic parameters, dry biomass production and lipid content were analyzed, using the experimental planning for one factor as a tool, with the concentration of nutrients as an independent variable. The maximum growth velocity (μmax), generation time (tg), as well as the lipid content were the studied response variables. The results showed that the species with the greatest accumulation of lipids were Chlorella sp., with a lipid content of 81.20%, and Nannochloropsis sp. with 73.68%, being the most promising for bioenergetic purposes. Therefore, the concentration of nutrients from fossil effluents combined with the salinity of the medium acted directly on cell growth and lipid content, and such factors can be used as an artifice to enhance lipid production, aiming at the production of biofuels. |
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Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposesEstudio estadístico de la cinética de crecimiento y contenido lipídico de microalgas cultivadas en medio salobre, utilizando aguas residuales como fuente de nutrientes con fines bioenergéticosEstudo estatístico da cinética de crescimento e teor de lipídeos de microalgas cultivadas em meios salobros, utilizando águas residuárias como fonte de nutrientes com fins bioenergéticosReuseBrackish WaterBiotechnologyBiofuelsBiomassLipids.ReutilizaciónAgua salobreBiotecnologíaBiocombustiblesBiomasaLípidos.ReusoÁguas SalobrasBiotecnologiaBiocombustíveisBiomassaLipídeos.The present work aimed to prove, statistically, the influence of the concentration of nutrients from fossil waters on the growth kinetics and intracellular lipid accumulation in microalgae. The species Chlorella sp., Scenedesmus acuminatus, Nannochloropsis sp., Monoraphidium contortum and Pediastrum tetras were studied, which were isolated from the semiarid region of the Brazilian northeast and cultivated in a mixture composed of brackish groundwater and effluent from septic tanks. From the crops, the kinetic parameters, dry biomass production and lipid content were analyzed, using the experimental planning for one factor as a tool, with the concentration of nutrients as an independent variable. The maximum growth velocity (μmax), generation time (tg), as well as the lipid content were the studied response variables. The results showed that the species with the greatest accumulation of lipids were Chlorella sp., with a lipid content of 81.20%, and Nannochloropsis sp. with 73.68%, being the most promising for bioenergetic purposes. Therefore, the concentration of nutrients from fossil effluents combined with the salinity of the medium acted directly on cell growth and lipid content, and such factors can be used as an artifice to enhance lipid production, aiming at the production of biofuels.El presente trabajo tuvo como objetivo probar estadísticamente la influencia de la concentración de nutrientes de aguas fósiles sobre la cinética de crecimiento y acumulación de lípidos intracelulares en microalgas. Se estudiaron las especies Chlorella sp., Scenedesmus acuminatus, Nannochloropsis sp., Monoraphidium contortum y Pediastrum tetras, que fueron aisladas de la región semiárida del Nordeste brasileño y cultivadas en una mezcla compuesta de aguas subterráneas salobres y efluentes de fosas sépticas. De los cultivos se analizaron los parámetros cinéticos, producción de biomasa seca y contenido de lípidos, utilizando como herramienta el diseño experimental para un factor, con la concentración de nutrientes como variable independiente. La velocidad máxima de crecimiento (μmax), el tiempo de generación (tg), así como el contenido de lípidos fueron las variables de respuesta estudiadas. Los resultados mostraron que las especies que presentaron mayor acumulación de lípidos fueron Chlorella sp., con un contenido de lípidos de 81,20% y Nannochloropsis sp. con un 73,68%, siendo el más promisorio para fines bioenergéticos. Por lo tanto, la concentración de nutrientes de los efluentes fósiles combinada con la salinidad del medio actuó directamente sobre el crecimiento celular y el contenido de lípidos, y estos factores pueden utilizarse como un dispositivo para mejorar la producción de lípidos, con el objetivo de producir biocombustibles.O presente trabalho teve como objetivo comprovar, estatisticamente, a influência da concentração de nutrientes provenientes de águas fóssicas na cinética de crescimento e acumulação lipídica intracelular em microalgas. Foram estudadas as espécies Chlorella sp., Scenedesmus acuminatus, Nannochloropsis sp., Monoraphidium contortum e Pediastrum tetras, as quais foram isoladas da região semiárida nordestina brasileira e cultivadas na mistura composta por água subterrânea salobra e efluente oriundo de fossas sépticas. A partir dos cultivos foram analisados os parâmetros cinéticos, produção de biomassa seca e teor de lipídeos, utilizando como ferramenta o planejamento experimental para um fator, tendo a concentração de nutrientes como variável independente. A velocidade máxima de crescimento (μmáx), tempo de geração (tg), bem como o teor de lipídeos foram as variáveis resposta estudadas. Os resultados mostraram que as espécies que apresentaram maior acúmulo de lipídios foram Chlorella sp., com conteúdo lipídico de 81,20% e Nannochloropsis sp. com 73,68%, sendo as mais promissoras para fins bioenergéticos. Portanto, a concentração de nutrientes provenientes de efluentes fóssicos aliada à salinidade do meio atuaram diretamente no crescimento celular e teor de lipídeos, podendo tais fatores serem utilizados como artifício para potencializar a produção lipídica, visando a produção de biocombustíveis.Research, Society and Development2022-07-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3224610.33448/rsd-v11i10.32246Research, Society and Development; Vol. 11 No. 10; e16111032246Research, Society and Development; Vol. 11 Núm. 10; e16111032246Research, Society and Development; v. 11 n. 10; e161110322462525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/32246/27498Copyright (c) 2022 Bruna da Silveira Guimarães; Kepler Borges França; João Alexandre Rodrigues Nascimento; Carolina Pereira Dantashttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessGuimarães, Bruna da Silveira França, Kepler Borges Nascimento, João Alexandre Rodrigues Dantas, Carolina Pereira 2022-08-12T22:23:03Zoai:ojs.pkp.sfu.ca:article/32246Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:48:18.357658Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes Estudio estadístico de la cinética de crecimiento y contenido lipídico de microalgas cultivadas en medio salobre, utilizando aguas residuales como fuente de nutrientes con fines bioenergéticos Estudo estatístico da cinética de crescimento e teor de lipídeos de microalgas cultivadas em meios salobros, utilizando águas residuárias como fonte de nutrientes com fins bioenergéticos |
| title |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| spellingShingle |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes Guimarães, Bruna da Silveira Reuse Brackish Water Biotechnology Biofuels Biomass Lipids. Reutilización Agua salobre Biotecnología Biocombustibles Biomasa Lípidos. Reuso Águas Salobras Biotecnologia Biocombustíveis Biomassa Lipídeos. |
| title_short |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| title_full |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| title_fullStr |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| title_full_unstemmed |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| title_sort |
Statistical study of the growth kinetics and lipid content of microalgae cultivated in brackish media, using wastewater as a source of nutrients for bioenergetic purposes |
| author |
Guimarães, Bruna da Silveira |
| author_facet |
Guimarães, Bruna da Silveira França, Kepler Borges Nascimento, João Alexandre Rodrigues Dantas, Carolina Pereira |
| author_role |
author |
| author2 |
França, Kepler Borges Nascimento, João Alexandre Rodrigues Dantas, Carolina Pereira |
| author2_role |
author author author |
| dc.contributor.author.fl_str_mv |
Guimarães, Bruna da Silveira França, Kepler Borges Nascimento, João Alexandre Rodrigues Dantas, Carolina Pereira |
| dc.subject.por.fl_str_mv |
Reuse Brackish Water Biotechnology Biofuels Biomass Lipids. Reutilización Agua salobre Biotecnología Biocombustibles Biomasa Lípidos. Reuso Águas Salobras Biotecnologia Biocombustíveis Biomassa Lipídeos. |
| topic |
Reuse Brackish Water Biotechnology Biofuels Biomass Lipids. Reutilización Agua salobre Biotecnología Biocombustibles Biomasa Lípidos. Reuso Águas Salobras Biotecnologia Biocombustíveis Biomassa Lipídeos. |
| description |
The present work aimed to prove, statistically, the influence of the concentration of nutrients from fossil waters on the growth kinetics and intracellular lipid accumulation in microalgae. The species Chlorella sp., Scenedesmus acuminatus, Nannochloropsis sp., Monoraphidium contortum and Pediastrum tetras were studied, which were isolated from the semiarid region of the Brazilian northeast and cultivated in a mixture composed of brackish groundwater and effluent from septic tanks. From the crops, the kinetic parameters, dry biomass production and lipid content were analyzed, using the experimental planning for one factor as a tool, with the concentration of nutrients as an independent variable. The maximum growth velocity (μmax), generation time (tg), as well as the lipid content were the studied response variables. The results showed that the species with the greatest accumulation of lipids were Chlorella sp., with a lipid content of 81.20%, and Nannochloropsis sp. with 73.68%, being the most promising for bioenergetic purposes. Therefore, the concentration of nutrients from fossil effluents combined with the salinity of the medium acted directly on cell growth and lipid content, and such factors can be used as an artifice to enhance lipid production, aiming at the production of biofuels. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-07-21 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://rsdjournal.org/index.php/rsd/article/view/32246 10.33448/rsd-v11i10.32246 |
| url |
https://rsdjournal.org/index.php/rsd/article/view/32246 |
| identifier_str_mv |
10.33448/rsd-v11i10.32246 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/32246/27498 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Research, Society and Development |
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Research, Society and Development |
| dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 11 No. 10; e16111032246 Research, Society and Development; Vol. 11 Núm. 10; e16111032246 Research, Society and Development; v. 11 n. 10; e16111032246 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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1797052821614362624 |