Cargando…

Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth

The antioxidant activity and phenolic composition of the aerial part of Amaranthus caudatus at seven stages of development were investigated. Total phenolic content, ABTS(•+), DPPH(•), and O(2)(•−) scavenging activity, ferric-reducing antioxidant power (FRAP), and Fe(2+) chelating ability were evalu...

Descripción completa

Detalles Bibliográficos
Autores principales: Karamać, Magdalena, Gai, Francesco, Longato, Erica, Meineri, Giorgia, Janiak, Michał A., Amarowicz, Ryszard, Peiretti, Pier Giorgio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6617258/
https://www.ncbi.nlm.nih.gov/pubmed/31212778
http://dx.doi.org/10.3390/antiox8060173
_version_ 1783433651190497280
author Karamać, Magdalena
Gai, Francesco
Longato, Erica
Meineri, Giorgia
Janiak, Michał A.
Amarowicz, Ryszard
Peiretti, Pier Giorgio
author_facet Karamać, Magdalena
Gai, Francesco
Longato, Erica
Meineri, Giorgia
Janiak, Michał A.
Amarowicz, Ryszard
Peiretti, Pier Giorgio
author_sort Karamać, Magdalena
collection PubMed
description The antioxidant activity and phenolic composition of the aerial part of Amaranthus caudatus at seven stages of development were investigated. Total phenolic content, ABTS(•+), DPPH(•), and O(2)(•−) scavenging activity, ferric-reducing antioxidant power (FRAP), and Fe(2+) chelating ability were evaluated. The phenolic profile was characterized by 17 compounds. Rutin was predominant in all growth stages, although its content, similar to the quantity of other phenolics, changed during the growth cycle. Flavonols were most abundant in the plants of early flowering and grain fill stages. In contrast, the highest content of hydroxycinnamic acid derivatives was found in the early vegetative stage. The results of antioxidant assays also showed significant differences among plant stages. Generally, the lowest antioxidant activity was found in the shooting and budding stages. Significantly higher activity was observed in amaranths in earlier (vegetative) and later (early flowering and grain fill) stages, suggesting that plants in these stages are valuable sources of antioxidants.
format Online
Article
Text
id pubmed-6617258
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-66172582019-07-18 Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth Karamać, Magdalena Gai, Francesco Longato, Erica Meineri, Giorgia Janiak, Michał A. Amarowicz, Ryszard Peiretti, Pier Giorgio Antioxidants (Basel) Article The antioxidant activity and phenolic composition of the aerial part of Amaranthus caudatus at seven stages of development were investigated. Total phenolic content, ABTS(•+), DPPH(•), and O(2)(•−) scavenging activity, ferric-reducing antioxidant power (FRAP), and Fe(2+) chelating ability were evaluated. The phenolic profile was characterized by 17 compounds. Rutin was predominant in all growth stages, although its content, similar to the quantity of other phenolics, changed during the growth cycle. Flavonols were most abundant in the plants of early flowering and grain fill stages. In contrast, the highest content of hydroxycinnamic acid derivatives was found in the early vegetative stage. The results of antioxidant assays also showed significant differences among plant stages. Generally, the lowest antioxidant activity was found in the shooting and budding stages. Significantly higher activity was observed in amaranths in earlier (vegetative) and later (early flowering and grain fill) stages, suggesting that plants in these stages are valuable sources of antioxidants. MDPI 2019-06-12 /pmc/articles/PMC6617258/ /pubmed/31212778 http://dx.doi.org/10.3390/antiox8060173 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Karamać, Magdalena
Gai, Francesco
Longato, Erica
Meineri, Giorgia
Janiak, Michał A.
Amarowicz, Ryszard
Peiretti, Pier Giorgio
Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title_full Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title_fullStr Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title_full_unstemmed Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title_short Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth
title_sort antioxidant activity and phenolic composition of amaranth (amaranthus caudatus) during plant growth
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6617258/
https://www.ncbi.nlm.nih.gov/pubmed/31212778
http://dx.doi.org/10.3390/antiox8060173
work_keys_str_mv AT karamacmagdalena antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT gaifrancesco antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT longatoerica antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT meinerigiorgia antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT janiakmichała antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT amarowiczryszard antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth
AT peirettipiergiorgio antioxidantactivityandphenoliccompositionofamaranthamaranthuscaudatusduringplantgrowth