title: Phenolic composition and antioxidant capacity of Ugni molinae Turcz. leaves of different genotypes.
abstract: Ugni molinae Turcz. is a native shrub of Chile, known for its edible berries and its leaves, which have been the focus of recent attention, as a good source of phenolic compounds to be used in cosmetics and food products. The aim of this study was to assess the differences in the phenolic composition and antioxidant capacity of the ethanolic extracts from the leaves of 10 genotypes of U. molinae, that were cultivated under the same soil, climate and agronomical management. Antioxidant activity was assessed by complementary methods (ORAC-Fl, FRAP and DPPH assay), phenolic composition of each extract was analyzed by LC-MS. Phenolic and flavonoid total contents were determined by Folin-Ciocalteu and AlCl3 methods. Significative differences were found by these methods, and ellagitannins, gallic acid derivatives and flavonols were identified as responsible for these differences, showing the influence of the genotype on the phenolic composition of U. molinae leaves.
authors.affiliation: Laboratorio de Productos Naturales, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Santos Dumont 964, Santiago, Chile. Electronic address: mpenac@ciq.uchile.cl.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Peña-Cerda
authors.affiliation: Laboratorio de Productos Naturales, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Santos Dumont 964, Santiago, Chile. Electronic address: jarancib@ciq.uchile.cl.
authors.forename: Jorge
authors.initials: J
authors.lastname: Arancibia-Radich
authors.affiliation: Laboratorio de Productos Naturales, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Santos Dumont 964, Santiago, Chile. Electronic address: p.valenzuelabustamante@gmail.com.
authors.forename: Paula
authors.initials: P
authors.lastname: Valenzuela-Bustamante
authors.affiliation: Laboratorio de Productos Naturales, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Santos Dumont 964, Santiago, Chile. Electronic address: rpereza@postqyf.uchile.cl.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Pérez-Arancibia
authors.affiliation: Unidad de Espectrometría de Masa, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Sergio Livingstone 1007, Santiago, Chile. Electronic address: anbarr@gmail.com.
authors.forename: Andrés
authors.initials: A
authors.lastname: Barriga
authors.affiliation: Instituto Nacional de Investigaciones Agropecuarias (INIA, Carillanca, Chile), PO Box 58-D, Temuco, Chile. Electronic address: iseguel@inia.cl.
authors.forename: Ivette
authors.initials: I
authors.lastname: Seguel
authors.affiliation: Advanced Center for Chronic Diseases (ACCDis), Departamento de Bioquímica y Biología Molécular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Sergio Livingstone 1007, Santiago, Chile. Electronic address: logarcia@ciq.uchile.cl.
authors.forename: Lorena
authors.initials: L
authors.lastname: García
authors.affiliation: Laboratorio de Productos Naturales, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, PO Box 8380492, Santos Dumont 964, Santiago, Chile. Electronic address: cdelpor@uchile.cl.
authors.forename: Carla
authors.initials: C
authors.lastname: Delporte
mesh_terms: D000975:Antioxidants / Q000737:chemistry; D002677:Chile; D005419:Flavonoids / Q000032:analysis; D005838:Genotype; D013058:Mass Spectrometry; D027822:Myrtaceae / Q000737:chemistry* / Q000145:classification; D010636:Phenols / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D005419:Flavonoids; D010636:Phenols; D010936:Plant Extracts
keywords: Antioxidant; DPPH; FRAP; Genotype; ORAC; Phenolic compounds; Ugni molinae