Abstract: In the literature there is little available information concerning European cranberrybush fruit (Viburnum opulus var. edule). This plant can be cultivated, even in harsh climatic conditions, because of its low environmental demands, and it is possible to harvest the fruit even in the snow cover. The aim of this study was to determine the content of polyphenolics, antioxidant activity, flavonoids and vitamin C in the fruit of three cultivars ´Leningradskaya otbornaya´, ´Souzga´ and ´Taezny rubiny´ of this species. In the case of polyphenolics, high contents [up to 8.29 g of gallic acid/kg of fresh mass (FM)] were observed. The 1,1´-diphenyl-2-picrylhydrazyl (DPPH) and 2,2´-azinobis-3-ethyl-benzthiazino-6-sulphonic acid (ABTS) tests were applied to determine antioxidant activity, which was also high in comparison with other fruit species. The corresponding correlations between the polyphenolic content and antioxidant activity were in case of the DPPH test r2 = 0.88 and for the ABTS test r2 = 0.98. For comparison, the scavenging activity towards reactive oxygen species (superoxide anion, hydroxyl radical and nitric oxide) was determined by using a 25% fruit extract of particular cultivars. Antioxidant efficiency was also assessed using the rat liver slice model. Furthermore, the contents of flavonoids and vitamin C were assayed, giving values of 4.89 g/kg and 1.64 g/kg FM, respectively. The work should contribute to the popularization of this species as a promising crop plant in human nutrition.
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Rop, O.; Reznicek, V.; Valsikova, M.; Jurikova, T.; Mlcek, J.; Kramarova, D. Antioxidant Properties of European Cranberrybush Fruit (Viburnum opulus var. edule). Molecules 2010, 15, 4467-4477.
Rop O, Reznicek V, Valsikova M, Jurikova T, Mlcek J, Kramarova D. Antioxidant Properties of European Cranberrybush Fruit (Viburnum opulus var. edule). Molecules. 2010; 15(6):4467-4477.
Rop, Otakar; Reznicek, Vojtech; Valsikova, Magdalena; Jurikova, Tunde; Mlcek, Jiri; Kramarova, Daniela. 2010. "Antioxidant Properties of European Cranberrybush Fruit (Viburnum opulus var. edule)." Molecules 15, no. 6: 4467-4477.