The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd

Detalhes bibliográficos
Autor(a) principal: Brasileiro, Beatriz Gonçalves
Data de Publicação: 2015
Outros Autores: Leite, João Paulo Viana, Casali, Vicente Wagner Dias, Pizziolo, Virgínia Ramos, Coelho, Olívia Gonçalves Leão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19130
Resumo: The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. 
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spelling The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) WilldportulacaceaewaterleafDPPHpolyphenolFitotecnia e Plantas medicinaisThe purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. Universidade Estadual de Maringá2015-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de campo e laboratórioapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1913010.4025/actasciagron.v37i2.19130Acta Scientiarum. Agronomy; Vol 37 No 2 (2015); 249-255Acta Scientiarum. Agronomy; v. 37 n. 2 (2015); 249-2551807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19130/pdf_74Brasileiro, Beatriz GonçalvesLeite, João Paulo VianaCasali, Vicente Wagner DiasPizziolo, Virgínia RamosCoelho, Olívia Gonçalves Leãoinfo:eu-repo/semantics/openAccess2015-05-04T09:36:48Zoai:periodicos.uem.br/ojs:article/19130Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2015-05-04T09:36:48Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
title The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
spellingShingle The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
Brasileiro, Beatriz Gonçalves
portulacaceae
waterleaf
DPPH
polyphenol
Fitotecnia e Plantas medicinais
title_short The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
title_full The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
title_fullStr The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
title_full_unstemmed The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
title_sort The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
author Brasileiro, Beatriz Gonçalves
author_facet Brasileiro, Beatriz Gonçalves
Leite, João Paulo Viana
Casali, Vicente Wagner Dias
Pizziolo, Virgínia Ramos
Coelho, Olívia Gonçalves Leão
author_role author
author2 Leite, João Paulo Viana
Casali, Vicente Wagner Dias
Pizziolo, Virgínia Ramos
Coelho, Olívia Gonçalves Leão
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Brasileiro, Beatriz Gonçalves
Leite, João Paulo Viana
Casali, Vicente Wagner Dias
Pizziolo, Virgínia Ramos
Coelho, Olívia Gonçalves Leão
dc.subject.por.fl_str_mv portulacaceae
waterleaf
DPPH
polyphenol
Fitotecnia e Plantas medicinais
topic portulacaceae
waterleaf
DPPH
polyphenol
Fitotecnia e Plantas medicinais
description The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare. 
publishDate 2015
dc.date.none.fl_str_mv 2015-05-04
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa de campo e laboratório
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19130
10.4025/actasciagron.v37i2.19130
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19130
identifier_str_mv 10.4025/actasciagron.v37i2.19130
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19130/pdf_74
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 Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 37 No 2 (2015); 249-255
Acta Scientiarum. Agronomy; v. 37 n. 2 (2015); 249-255
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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