| Literature DB >> 26041234 |
Vilma Kraujalytė1, Petras Rimantas Venskutonis2, Audrius Pukalskas1, Laima Česonienė3, Remigijus Daubaras3.
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.Entities:
Keywords: Antioxidant capacity; Colour; Electronic tongue; Phenolic compounds; Total anthocyanin content; Vaccinium corymbosum; Vaccinium uliginosum
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Year: 2015 PMID： 26041234 DOI： 10.1016/j.foodchem.2015.05.031
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514