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...
Autores principales: | , , , , , , |
---|---|
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 |