Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/3310 |
Resumo: | ABSTRACT: Microalgae are microorganisms with the capacity to contribute to the sustainable and healthy food production, in addition to wastewater treatment. The subject of this work was to determine the potential of Scenedesmus obliquus microalga grown in brewery wastewater to act as a plant biostimulant. The germination index of watercress seeds, as well as the auxin-like activity in mung bean and cucumber, and in the cytokinin-like activity in cucumber bioassays were used to evaluate the biostimulant potential. Several biomass processes were studied, such as centrifugation, ultrasonication and enzymatic hydrolysis, as well as the final concentration of microalgal extracts to determine their influence in the biostimulant activity of the Scenedesmus biomass. The results showed an increase of 40% on the germination index when using the biomass at 0.1 g/L, without any pre-treatment. For auxin-like activity, the best results (up to 60% with respect to control) were obtained at 0.5 g/L of biomass extract, after a combination of cell disruption, enzymatic hydrolysis and centrifugation. For cytokinin-like activity, the best results (up to 187.5% with respect to control) were achieved without cell disruption, after enzymatic hydrolysis and centrifugation at a biomass extract concentration of 2 g/L. |
id |
RCAP_16976307234fe81d13c11f504d0296f3 |
---|---|
oai_identifier_str |
oai:repositorio.lneg.pt:10400.9/3310 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewaterMicroalgaeScenedesmus obliquusWastewater treatmentABSTRACT: Microalgae are microorganisms with the capacity to contribute to the sustainable and healthy food production, in addition to wastewater treatment. The subject of this work was to determine the potential of Scenedesmus obliquus microalga grown in brewery wastewater to act as a plant biostimulant. The germination index of watercress seeds, as well as the auxin-like activity in mung bean and cucumber, and in the cytokinin-like activity in cucumber bioassays were used to evaluate the biostimulant potential. Several biomass processes were studied, such as centrifugation, ultrasonication and enzymatic hydrolysis, as well as the final concentration of microalgal extracts to determine their influence in the biostimulant activity of the Scenedesmus biomass. The results showed an increase of 40% on the germination index when using the biomass at 0.1 g/L, without any pre-treatment. For auxin-like activity, the best results (up to 60% with respect to control) were obtained at 0.5 g/L of biomass extract, after a combination of cell disruption, enzymatic hydrolysis and centrifugation. For cytokinin-like activity, the best results (up to 187.5% with respect to control) were achieved without cell disruption, after enzymatic hydrolysis and centrifugation at a biomass extract concentration of 2 g/L.MDPIRepositório do LNEGNavarro-Lopez, ElviraRuiz-Nieto, AngelaFerreira, AliceAcien, GabrielGouveia, Luisa2020-09-22T15:47:05Z2020-01-01T00:00:00Z2020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3310engNavarro-López, Elvira... [et.al.] - Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater. In: Molecules, 2020, Vol.25 (3), article nº 66410.3390/molecules250306641420-3049info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:28:48Zoai:repositorio.lneg.pt:10400.9/3310Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:36:32.392265Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
title |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
spellingShingle |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater Navarro-Lopez, Elvira Microalgae Scenedesmus obliquus Wastewater treatment |
title_short |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
title_full |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
title_fullStr |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
title_full_unstemmed |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
title_sort |
Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater |
author |
Navarro-Lopez, Elvira |
author_facet |
Navarro-Lopez, Elvira Ruiz-Nieto, Angela Ferreira, Alice Acien, Gabriel Gouveia, Luisa |
author_role |
author |
author2 |
Ruiz-Nieto, Angela Ferreira, Alice Acien, Gabriel Gouveia, Luisa |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Navarro-Lopez, Elvira Ruiz-Nieto, Angela Ferreira, Alice Acien, Gabriel Gouveia, Luisa |
dc.subject.por.fl_str_mv |
Microalgae Scenedesmus obliquus Wastewater treatment |
topic |
Microalgae Scenedesmus obliquus Wastewater treatment |
description |
ABSTRACT: Microalgae are microorganisms with the capacity to contribute to the sustainable and healthy food production, in addition to wastewater treatment. The subject of this work was to determine the potential of Scenedesmus obliquus microalga grown in brewery wastewater to act as a plant biostimulant. The germination index of watercress seeds, as well as the auxin-like activity in mung bean and cucumber, and in the cytokinin-like activity in cucumber bioassays were used to evaluate the biostimulant potential. Several biomass processes were studied, such as centrifugation, ultrasonication and enzymatic hydrolysis, as well as the final concentration of microalgal extracts to determine their influence in the biostimulant activity of the Scenedesmus biomass. The results showed an increase of 40% on the germination index when using the biomass at 0.1 g/L, without any pre-treatment. For auxin-like activity, the best results (up to 60% with respect to control) were obtained at 0.5 g/L of biomass extract, after a combination of cell disruption, enzymatic hydrolysis and centrifugation. For cytokinin-like activity, the best results (up to 187.5% with respect to control) were achieved without cell disruption, after enzymatic hydrolysis and centrifugation at a biomass extract concentration of 2 g/L. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-22T15:47:05Z 2020-01-01T00:00:00Z 2020-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.9/3310 |
url |
http://hdl.handle.net/10400.9/3310 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Navarro-López, Elvira... [et.al.] - Biostimulant potential of Scenedesmus obliquus grown in brewery wastewater. In: Molecules, 2020, Vol.25 (3), article nº 664 10.3390/molecules25030664 1420-3049 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799130231415504896 |