The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
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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Acta Scientiarum. Agronomy (Online) |
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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 |
_version_ |
1799305909282799616 |