title: Anthocyanin characterization, total phenolic quantification and antioxidant features of some Chilean edible berry extracts.
abstract: The anthocyanin composition and HPLC fingerprints of six small berries endemic of the VIII region of Chile were investigated using high resolution mass analysis for the first time (HR-ToF-ESI-MS). The antioxidant features of the six endemic species were compared, including a variety of blueberries which is one of the most commercially significant berry crops in Chile. The anthocyanin fingerprints obtained for the fruits were compared and correlated with the antioxidant features measured by the bleaching of the DPPH radical, the ferric reducing antioxidant power (FRAP), the superoxide anion scavenging activity assay (SA), and total content of phenolics, flavonoids and anthocyanins measured by spectroscopic methods. Thirty one anthocyanins were identified, and the major ones were quantified by HPLC-DAD, mostly branched 3-O-glycosides of delphinidin, cyanidin, petunidin, peonidin and malvidin. Three phenolic acids (feruloylquinic acid, chlorogenic acid, and neochlorogenic acid) and five flavonols (hyperoside, isoquercitrin, quercetin, rutin, myricetin and isorhamnetin) were also identified. Calafate fruits showed the highest antioxidant activity (2.33 ± 0.21 μg/mL in the DPPH assay), followed by blueberry (3.32 ± 0.18 μg/mL), and arrayán (5.88 ± 0.21), respectively.
authors: Laboratorio de Productos Naturales, Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av. Coloso S-N, Antofagasta 1240000, Chile. Anghel.Brito@gmail.com.
authors: Anghel
authors: A
authors: Brito
authors: Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago 7800024, Chile. areche@uchile.cl.
authors: Carlos
authors: C
authors: Areche
authors: Departamento de Ciencias Químicas, Universidad Andrés Bello, Campus Viña del Mar, Quillota 980, Viña del Mar 2520000, Chile. bsepulveda@uc.cl.
authors: Beatriz
authors: B
authors: Sepúlveda
authors: Department of Biological Sciences, Lehman College and The Graduate Center, The City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA. kennelly@lehman.cuny.edu.
authors: Edward J
authors: EJ
authors: Kennelly
authors: Laboratorio de Productos Naturales, Departamento de Química, Facultad de Ciencias Básicas, Universidad de Antofagasta, Av. Coloso S-N, Antofagasta 1240000, Chile. mario.simirgiotis@uantof.cl.
authors: Mario J
authors: MJ
authors: Simirgiotis
mesh_terms: D000872:Anthocyanins / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology*; D002677:Chile; D044948:Flavonols / Q000737:chemistry; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology; D005638:Fruit / Q000737:chemistry*; D013058:Mass Spectrometry; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D010641:Phenotype; D010936:Plant Extracts / Q000737:chemistry* / Q000494:pharmacology*; D010945:Plants, Edible / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D044948:Flavonols; D016166:Free Radical Scavengers; D010636:Phenols; D010936:Plant Extracts