Abstract
Some important physicochemical and bioactive characteristics of disease free 10 wild grown bilberry (Vaccinium myrtillus) accessions were evaluated. External and internal fruit quality was assessed by standard parameters (fruit weight, fruit color, fruit firmness, soluble solids, pH and total acidity) and bioactive contents (total phenolics, total anthocyanins, total antioxidant capacity and, vitamin C) in fruit were also determined. The commercial grown northern higbush blueberry, Vaccinium corymbosum cv. Bluecrop also included in the study to make comparision with bilberry samples. The highbush blueberry cv. Bluecrop had distinctive external fruit characteristics, such as bigger and more attractive fruits. However, the wild grown bilberry accessions showed interesting characters in mesocarp, such as high total phenolic content, total anthocyanin and total antioxidant capacity. Total phenolic and total anthocyanin content was 327 mg gallic acid equivalent and 142 mg of cyanidin-3-glucoside equivalent in 100 g fresh fruit in cv. Bluecrop while it was between 576–624 mg gallic acid equaivalent and 296–324 mg of cyanidin-3-glucoside equivalent in 100 g fresh fruits of bilberry accessions. Moreover, wild accessions approximately had 2 folds higher antioxidant capacity than cv. Bluecrop. Results suggested that bilberry accessions may serve as a source of desirable genes to develop improved varieties that respond to the new needs of the market.
Zusammenfassung
Einige wichtige physikalisch-chemische und bioaktive Merkmale 10 krankheitsfreier Akzessionen wildwachsender Heidelbeeren (Vaccinium myrtillus) wurden beurteilt. Die externe und interne Fruchtqualität wurde anhand von Standardparametern (Fruchtgewicht, Fruchtfarbe, Fruchtfestigkeit, lösliche Feststoffe, pH und Gesamtsäuregehalt) bewertet und der bioaktive Gehalt (Gesamtphenolgehalt, Gesamtanthocyangehalt, die antioxidative Kapazität insgesamt, Vitamin C) wurde ebenfalls bestimmt. Die kommerziell angebaute Kulturheidelbeere Vaccinium corymbosum cv. Bluecrop wurde ebenfalls in die Studie aufgenommen, um diese mit den Proben der wilden Heidelbeere zu vergleichen. Die Kulturheidelbeere cv. Bluecrop zeigte distinktive äußere Fruchtmerkmale wie größere und attraktivere Früchte. Die Akzessionen der wilden Heidelbeere zeigten jedoch interessante Merkmale des Mesokarps, wie einen hohen Gesamtphenolgehalt, einen hohen Gesamtanthocyangehalt und eine hohe antioxidative Kapazität. Der Gesamtphenol- und -anthocyangehalt lag bei 100 g frischer Früchte der Kultursorte Bluecrop bei 327 mg Gallussäure-Äquivalent und 142 mg Cyanidin-3-Glucosid-Äquivalent, bei 100 g der Akzessionen frischer Wildheidelbeeren bei 576–624 mg Gallussäure-Äquivalent und 296–324 mg Cyanidin-3-Glucosid-Äquivalent. Zudem hatten die Akzessionen der Wildpflanzen eine etwa doppelt so hohe antioxidative Kapazität wie die Kultursorte Bluecrop. Die Ergebnisse legen nahe, dass Wildheidelbeeren als Quelle erwünschter Gene zur Entwicklung verbesserter Sorten dienen können, die neuen Anforderungen des Marktes entsprechen.
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A.M. Colak, M. Kupe, M.R. Bozhuyuk, S. Ercisli and M. Gundogdu declare that they have no competing interests.
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Colak, A.M., Kupe, M., Bozhuyuk, M.R. et al. Identification of some Fruit Characteristics in Wild Bilberry (Vaccinium myrtillus L.) Accessions from Eastern Anatolia. Gesunde Pflanzen 70, 31–38 (2018). https://doi.org/10.1007/s10343-017-0410-z
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DOI: https://doi.org/10.1007/s10343-017-0410-z