Please use this identifier to cite or link to this item:
Title: Exploring the antioxidant features of polyphenols by spectroscopic and electrochemical methods
Author: Alcalde, Berta
Granados i Juan, Mercè
Saurina, Javier
Keywords: Antioxidants
Issue Date: 31-Oct-2019
Abstract: This paper evaluates the antioxidant ability of polyphenols as a function of their chemical structures. Several common food indexes including Folin-Ciocalteau (FC), ferric reducing antioxidant power (FRAP) and trolox equivalent antioxidant capacity (TEAC) assays were applied to selected polyphenols that di er in the number and position of hydroxyl groups. Voltammetric assays with screen-printed carbon electrodes were also recorded in the range of 􀀀0.2 to 0.9 V (vs. Ag/AgCl reference electrode) to investigate the oxidation behavior of these substances. Poor correlations among assays were obtained, meaning that the behavior of each compound varies in response to the di erent methods. However, we undertook a comprehensive study based on principal component analysis that evidenced clear patterns relating the structures of several compounds and their antioxidant activities.
Note: Reproducció del document publicat a:
It is part of: Antioxidants, 2019, vol. 2019, num. 8, p. 523
Related resource:
ISSN: 2076-3921
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

Files in This Item:
File Description SizeFormat 
694296.pdf1.31 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons