TITLE:
Determination of Polyphenolic Compounds by Ultra-Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry and Antioxidant Capacity of Spanish Subtropical Fruits
AUTHORS:
Adelaida Esteban Muñoz, Montserrat Barea Álvarez, María-Jesús Oliveras-López, Rafael Giménez Martínez, José Ángel Rufián Henares, Manuel Olalla Herrera
KEYWORDS:
Phenolic Compounds, Spanish Subtropical Fruits, Antioxidant Activity, UPLC-ESI-MS/MS, Q-TOF
JOURNAL NAME:
Agricultural Sciences,
Vol.9 No.2,
February
13,
2018
ABSTRACT: In an analysis of the seven types of subtropical fruits most consumed and produced in southern Spain, UPLC-ESI-MS/MS was used to quantify 14 phenolic species: five hydroxycinnamic acids, seven hydroxybenzoic acids and two flavonoids (quercetin and naringenin). In each case, in addition, antioxidant capacity was determined by FRAP, ABTS and DPPH. Of these fruits, carambola (or starfruit) presented the highest levels of phenolic compounds, cherimoya (custard apple) and kiwi were the richest in non-flavonoid phenolic compounds and papaya had the highest levels of the flavonoids studied. Higher mean values were recorded in home-grown fruits than in imported varieties by ABTS and DPPH methods. Persimmon’s antioxidant capacity was well above that of the other fruits, according to our analyses.