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. 2017 Dec 26;23(1):53.
doi: 10.3390/molecules23010053.

Evaluation of Bioactive Compounds, Minerals and Antioxidant Activity of Lingonberry (Vaccinium vitis-idaea L.) Fruits

Paulina Dróżdż  1 , Vaida Šėžienė  2 , Józef Wójcik  3 , Krystyna Pyrzyńska  4
Affiliations

Evaluation of Bioactive Compounds, Minerals and Antioxidant Activity of Lingonberry (Vaccinium vitis-idaea L.) Fruits

Paulina Dróżdż et al. Molecules. .

Abstract

The extraction efficiency of major classes of phenolics from lingonberries grown in the central region of Poland was evaluated. The ethanol-water solution (60:40, v/v) resulted in the highest extraction yields; however, the results obtained for ethyl acetate were only slightly lower. Total phenolics estimated by Folin-Ciocalteu assay ranged from 468 to 661 mg of GA/100 g fresh weight (fw), while total flavonoids were in the range of 53.2-67.8 μmol/100 g fw. Both solvents exhibited comparable potential for monomeric anthocyanin extraction (26.1-43.0 mg CGE/100 g of fw). The content of several minerals in these fruits and in soil collected from the same places were compared. The essential metal concentrations in all samples increased in the following order: Cr < Cu < Zn < Fe. The levels of toxic elements (Cd, Pb) were acceptable to human consumption for most tested samples. The ethanol-water extracts exhibited the highest scavenging activity against 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radicals, while the highest reducing capacity evaluated by cupric reducing antioxidant capacity (CUPRAC) was obtained for ethyl acetate extracts.

Keywords: anthocyanins; antioxidant activity; flavonoids; lingonberries; minerals; polyphenols.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The kinetic curves of scavenged 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radicals by the extracts of lingonberry fruits.
Figure 2
Figure 2
Antioxidant activity of lingonberry extracts evaluated by (a) cupric reducing antioxidant capacity (CUPRAC) and (b) DPPH assay.
See this image and copyright information in PMC

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