title: Chilean prosopis mesocarp flour: phenolic profiling and antioxidant activity.
abstract: In South America, the mesocarp flour of Prosopis species plays a prominent role as a food resource in arid areas. The aim of this work was the characterization of the phenolic antioxidants occurring in the pod mesocarp flour of Chilean Prosopis. Samples were collected in the Copiapo, Huasco and Elqui valleys from the north of Chile. The samples of P. chilensis flour exhibited a total phenolic content ranging between 0.82-2.57 g gallic acid equivalents/100 g fresh flour weight. The highest antioxidant activity, measured by the DPPH assay, was observed for samples from the Huasco valley. HPLC-MS/MS analysis allowed the tentative identification of eight anthocyanins and 13 phenolic compounds including flavonol glycosides, C-glycosyl flavones and ellagic acid derivatives. The antioxidant activity and the phenolic composition in the flour suggest that this ancient South American resource may have potential as a functional food.
authors.affiliation: Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3460000, Chile. schmeda@utalca.cl.
authors.forename: Guillermo
authors.initials: G
authors.lastname: Schmeda-Hirschmann
authors.affiliation: Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3460000, Chile. elquispe@unap.cl.|Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1110939, Chile. elquispe@unap.cl.
authors.forename: Cristina
authors.initials: C
authors.lastname: Quispe
authors.affiliation: Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3460000, Chile. mcaramantin@utalca.cl.
authors.forename: Maria Del Pilar C
authors.initials: Mdel P
authors.lastname: Soriano
authors.affiliation: Laboratorio de Cultivo Celular, Facultad de Ciencias de la Salud, Universidad de Talca, Casilla 747, Talca 3460000, Chile. ctheodul@utalca.cl.
authors.forename: Cristina
authors.initials: C
authors.lastname: Theoduloz
authors.affiliation: Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, Casilla 747, Talca 3460000, Chile. fjimenez@utalca.cl.
authors.forename: Felipe
authors.initials: F
authors.lastname: Jiménez-Aspée
authors.affiliation: Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Química del NOA (INIQUINOA.CONICET), Universidad Nacional de Tucumán, San Miguel de Tucumán 4000, Argentina. jorgelinaperezbasa@gmail.com.
authors.forename: Maria Jorgelina
authors.initials: MJ
authors.lastname: Pérez
authors.affiliation: Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Química del NOA (INIQUINOA.CONICET), Universidad Nacional de Tucumán, San Miguel de Tucumán 4000, Argentina. asolecue@yahoo.com.
authors.forename: Ana Soledad
authors.initials: AS
authors.lastname: Cuello
authors.affiliation: Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Química del NOA (INIQUINOA.CONICET), Universidad Nacional de Tucumán, San Miguel de Tucumán 4000, Argentina. misla@tucbbs.com.ar.
authors.forename: Maria Inés
authors.initials: MI
authors.lastname: Isla
mesh_terms: D000872:Anthocyanins / Q000737:chemistry; D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology*; D002677:Chile; D002851:Chromatography, High Pressure Liquid; D044948:Flavonols / Q000737:chemistry; D005433:Flour / Q000032:analysis*; D005843:Geography; D010636:Phenols / Q000737:chemistry* / Q000494:pharmacology*; D010641:Phenotype; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology; D029862:Prosopis / Q000737:chemistry*; D053719:Tandem Mass Spectrometry
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D044948:Flavonols; D010636:Phenols; D010936:Plant Extracts