title: High concentrations of anthocyanins in genuine cherry-juice of old local Austrian Prunus avium varieties.
abstract: Antioxidant activity and polyphenols were quantified in vapour-extracted juice of nine Austrian, partially endemic varieties of sweet cherry (Prunus avium): cv. 'Spätbraune von Purbach', cv. 'Early Rivers', cv. 'Joiser Einsiedekirsche', cv. 'Große Schwarze Knorpelkirsche' and four unidentified local varieties. Additionally the effect of storage was evaluated for six of the varieties. A variety showing the highest antioxidant capacity (9.64 μmol Trolox equivalents per mL), total polyphenols (2747 mg/L) and total cyanidins (1085 mg/L) was suitable for mechanical harvest and its juice did not show any losses of antioxidant capacity and total anthocyanin concentration during storage. The juice of cv. 'Große Schwarze Knorpelkirsche' had also high concentrations of total anthocyanins (873 mg/L), but showed substantial losses through storage. The local Austrian sweet cherry varieties from the Pannonian climate zone are particularly suitable for the production of processed products like cherry juice with high content of anthocyanins and polyphenols.
authors.affiliation: University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Division of Viticulture and Pomology, 1180 Vienna, Austria. Electronic address: elisabeth.schueller@boku.ac.at.
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Schüller
authors.affiliation: Vienna University of Technology, Institute of Chemical Engineering, 1060 Vienna, Austria.
authors.forename: Heidi
authors.initials: H
authors.lastname: Halbwirth
authors.affiliation: University of Ljubljana, Biotechnical Faculty, Agronomy Department, Chair for Fruit, Wine and Vegetable Growing, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors.forename: Maja
authors.initials: M
authors.lastname: Mikulic-Petkovsek
authors.affiliation: University of Ljubljana, Biotechnical Faculty, Agronomy Department, Chair for Fruit, Wine and Vegetable Growing, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors.forename: Ana
authors.initials: A
authors.lastname: Slatnar
authors.affiliation: University of Ljubljana, Biotechnical Faculty, Agronomy Department, Chair for Fruit, Wine and Vegetable Growing, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors.forename: Robert
authors.initials: R
authors.lastname: Veberic
authors.affiliation: University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Division of Viticulture and Pomology, 1180 Vienna, Austria.
authors.forename: Astrid
authors.initials: A
authors.lastname: Forneck
authors.affiliation: Vienna University of Technology, Institute of Chemical Engineering, 1060 Vienna, Austria.
authors.forename: Karl
authors.initials: K
authors.lastname: Stich
authors.affiliation: University of Natural Resources and Life Sciences, Vienna, Department of Crop Sciences, Division of Viticulture and Pomology, 1180 Vienna, Austria.
authors.forename: Andreas
authors.initials: A
authors.lastname: Spornberger
mesh_terms: D000872:Anthocyanins / Q000032:analysis*; D000975:Antioxidants / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry; D059808:Polyphenols / Q000032:analysis*; D027861:Prunus / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D010936:Plant Extracts; D059808:Polyphenols
keywords: Anthocyanins; Antioxidant capacity; Cherry juice; Local Austrian varieties; Polyphenols; Prunus avium L.