title: Hydroxycinnamic acids and flavonols in native edible berries of South Patagonia.
abstract: Diverse edible berries are native to the Patagonian region of Southern Chile. These berries are underused because their nutritional properties are relatively unknown. In this work, the profiles and concentrations of hydroxycinnamic acid derivatives and flavonols, and the antioxidant capacity of the berry extracts, were studied using HPLC-DAD-ESI-MS/MS and CUPRAC assays, respectively. In total, 46 compounds were identified, including 17 hydroxycinnamic acid derivatives and 26 flavonols. Caffeoylquinic acid isomers were the most abundant compounds, and quercetin and myricetin derivatives were the main flavonols found. The berries from Ribes genera showed a high diversity and concentration of these 2 families of compounds and contained 3-caffeoylquinic acid and quercetin-3-rutinoside at the highest concentrations. The Patagonian berries, especially the berries of Rubus and Ribes genera, had high cupric reducing antioxidant capacity, comparable with that described for berries from the Northern hemisphere. These results contribute to promote the nutritional study of these fruits.
authors.affiliation: Instrumental Analysis Department, Faculty of Pharmacy, University of Concepción, PO Box 160-C, Concepción, Chile; Department of Chemical Sciences and Natural resources, University of La Frontera, Casilla 54-D, Temuco, Chile.
authors.forename: Antonieta
authors.initials: A
authors.lastname: Ruiz
authors.affiliation: Instrumental Analysis Department, Faculty of Pharmacy, University of Concepción, PO Box 160-C, Concepción, Chile.
authors.forename: Luis
authors.initials: L
authors.lastname: Bustamante
authors.affiliation: Instrumental Analysis Department, Faculty of Pharmacy, University of Concepción, PO Box 160-C, Concepción, Chile.
authors.forename: Carola
authors.initials: C
authors.lastname: Vergara
authors.affiliation: Instrumental Analysis Department, Faculty of Pharmacy, University of Concepción, PO Box 160-C, Concepción, Chile.
authors.forename: Dietrich
authors.initials: D
authors.lastname: von Baer
authors.affiliation: Regional Institute for Applied and Scientific Research, University of Castilla-La Mancha, Ronda de Calatrava 7, 13071 Ciudad Real, Spain.
authors.forename: Isidro
authors.initials: I
authors.lastname: Hermosín-Gutiérrez
authors.affiliation: Huertos Frutales Menores, Estancia Julia, Región de Magallanes, Chile.
authors.forename: Luis
authors.initials: L
authors.lastname: Obando
authors.affiliation: Instrumental Analysis Department, Faculty of Pharmacy, University of Concepción, PO Box 160-C, Concepción, Chile. Electronic address: cmardone@udec.cl.
authors.forename: Claudia
authors.initials: C
authors.lastname: Mardones
mesh_terms: D000975:Antioxidants; D002677:Chile; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003373:Coumaric Acids / Q000737:chemistry*; D044948:Flavonols / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000975:Antioxidants; D003373:Coumaric Acids; D044948:Flavonols
keywords: Flavonols; HPLC–DAD–ESI–MS/MS; Hydroxycinnamic acids; Native berries