Assessment of grapevine stems as source of phenolics with antioxidant properties.

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ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Winemaking industry generates considerable amounts of bunch stems that are usually wasted despite their potential value as source of bioactive compounds. Phenolic profiles and antioxidant capacity (AC) of bunch stem extracts from eight grape varieties of Vitis...

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Detalles Bibliográficos
Autores principales: Ferreyra, Susana, Bottini, Rubén, Fontana, Ariel
Formato: Artículo Científico
Lenguaje:Inglés
Publicado: Comité editorial Revista de Ciencias Agrarias de la Universidad Nacional de Cuyo 2020
Materias:
Antioxidant capacity
Bioactive compounds
Grape bunch stems
Industry by-products.
Acceso en línea:http://repositorio.umaza.edu.ar//handle/00261/1682
http://revistas.uncuyo.edu.ar/ojs3/index.php/RFCA/article/view/2728
Aporte de:
UMAZA Digital (Universidad MAZA - Mendoza) de Universidad Juan Agustín MAZA
id I56-R16200261-1682
record_format dspace
institution Universidad Juan Agustín MAZA
institution_str I-56
repository_str R-162
collection UMAZA Digital (Universidad MAZA - Mendoza)
language Inglés
orig_language_str_mv eng
topic Antioxidant capacity
Bioactive compounds
Grape bunch stems
Industry by-products.
spellingShingle Antioxidant capacity
Bioactive compounds
Grape bunch stems
Industry by-products.
Ferreyra, Susana
Bottini, Rubén
Fontana, Ariel
Assessment of grapevine stems as source of phenolics with antioxidant properties.
description ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Winemaking industry generates considerable amounts of bunch stems that are usually wasted despite their potential value as source of bioactive compounds. Phenolic profiles and antioxidant capacity (AC) of bunch stem extracts from eight grape varieties of Vitis vinifera L. were determined. Sixteen phenolic compounds (PC) were quantified by high performance-liquid chromatography-diode array detection (HPLC-DAD). The maximum concentrations corresponded to the flavanols (+)-catechin (6462 μg g-1 DW) and procyanidin B1 (1987 μg g-1 DW), followed by the hydroxycinnamic acid caftaric acid (2967 μg g-1 DW). Naringin, myricetin and OH-tyrosol were identified for the first time in grape bunch stems. Total phenolic content (TPC) of extracts, assessed as gallic acid equivalents (GAE), ranged between 47 and 125 mg GAE g-1 DW. The AC of extracts was appraised by ORAC, ABTS and DPPH assays, with a good correlation between TPC and AC when measured by ABTS and DPPH (r ≥ 0.92), while for ORAC the correlation was lower (r ≤ 0.41). Samples of cv. Malbec, the most representative variety of Argentina, presented the highest contents in PC, particularly flavanols. The results showed that grape bunch stems may be an inexpensive, sustainable and high value source of bioactive compounds as functional ingredients. Sitio de la revista: http://revistas.uncuyo.edu.ar/ojs3/index.php/RFCA/article/view/2728
format Artículo Científico
author Ferreyra, Susana
Bottini, Rubén
Fontana, Ariel
author_facet Ferreyra, Susana
Bottini, Rubén
Fontana, Ariel
author_sort Ferreyra, Susana
title Assessment of grapevine stems as source of phenolics with antioxidant properties.
title_short Assessment of grapevine stems as source of phenolics with antioxidant properties.
title_full Assessment of grapevine stems as source of phenolics with antioxidant properties.
title_fullStr Assessment of grapevine stems as source of phenolics with antioxidant properties.
title_full_unstemmed Assessment of grapevine stems as source of phenolics with antioxidant properties.
title_sort assessment of grapevine stems as source of phenolics with antioxidant properties.
publisher Comité editorial Revista de Ciencias Agrarias de la Universidad Nacional de Cuyo
publishDate 2020
url http://repositorio.umaza.edu.ar//handle/00261/1682
http://revistas.uncuyo.edu.ar/ojs3/index.php/RFCA/article/view/2728
work_keys_str_mv AT ferreyrasusana assessmentofgrapevinestemsassourceofphenolicswithantioxidantproperties
AT bottiniruben assessmentofgrapevinestemsassourceofphenolicswithantioxidantproperties
AT fontanaariel assessmentofgrapevinestemsassourceofphenolicswithantioxidantproperties
bdutipo_str Repositorios
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