title: Antioxidant properties, phenolic composition and potentiometric sensor array evaluation of commercial and new blueberry (Vaccinium corymbosum) and bog blueberry (Vaccinium uliginosum) genotypes.
abstract: Antioxidant properties of juices of newly bred and known blueberry (Vaccinium corymbosum) genotypes and wild bog blueberry (Vaccinium uliginosum) were evaluated by ABTS(+) scavenging capacity (RSC), ferric reducing antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), total phenolic content (TPC) and total anthocyanin content (TAC) assays. TPC varied in the range of 0.85-2.81 mg gallic acid equiv./mL, RSC, FRAP and ORAC values were 6.38-20.9, 3.07-17.8 and 4.21-45.68 μmol Trolox equiv./g, respectively. New blueberry genotypes and bog blueberry demonstrated stronger antioxidant properties and TAC than other studied genotypes. The content of quinic (203-3614 μg/mL), chlorogenic (20.0-346.8 μg/mL) acids and rutin (0.00-26.88 μg/mL) measured by UPLC/ESI-QTOF-MS varied depending on the genotype. Juices were evaluated by electronic tongue; PCA score plot showed that the method discriminates different genotypes although some juice samples were located very closely and overlapping. Significant differences were observed between L(∗), a(∗), b(∗) colour parameters of some genotypes.
authors.affiliation: Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania.
authors.forename: Vilma
authors.initials: V
authors.lastname: Kraujalytė
authors.affiliation: Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania. Electronic address: rimas.venskutonis@ktu.lt.
authors.forename: Petras Rimantas
authors.initials: PR
authors.lastname: Venskutonis
authors.affiliation: Department of Food Science and Technology, Kaunas University of Technology, Radvilėnų pl. 19, Kaunas LT-50254, Lithuania.
authors.forename: Audrius
authors.initials: A
authors.lastname: Pukalskas
authors.affiliation: Kaunas Botanical Garden of Vytautas Magnus University, Žilibero g. 6, Kaunas LT-46324, Lithuania.
authors.forename: Laima
authors.initials: L
authors.lastname: Česonienė
authors.affiliation: Kaunas Botanical Garden of Vytautas Magnus University, Žilibero g. 6, Kaunas LT-46324, Lithuania.
authors.forename: Remigijus
authors.initials: R
authors.lastname: Daubaras
mesh_terms: D000872:Anthocyanins; D000975:Antioxidants / Q000737:chemistry*; D029798:Blueberry Plants / Q000737:chemistry*; D005838:Genotype; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D053833:Wetlands
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts
keywords: Antioxidant capacity; Colour; Electronic tongue; Phenolic compounds; Total anthocyanin content; Vaccinium corymbosum; Vaccinium uliginosum