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Článek

Environmental Factors Correlated with the Metabolite Profile of Vitis vinifera cv. Pinot Noir Berry Skins along a European Latitudinal Gradient

... Solar radiation variables were positively correlated with flavonols and flavanonols and, to a lesser ...

Del-Castillo-Alonso, María Ángeles
Autor Del-Castillo-Alonso, María Ángeles Faculty of Science and Technology, University of La Rioja , Madre de Dios 53, 26006 Logroño (La Rioja), Spain
Castagna, Antonella
Autor Castagna, Antonella Department of Agriculture - Food and Environment, and Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa , via del Borghetto 80, 56124 Pisa, Italy
Csepregi, Kristóf
Autor Csepregi, Kristóf Institute of Biology, University of Pécs , Ifjúság u. 6, 7624 Pécs, Hungary
Hideg, Éva
Autor Hideg, Éva Institute of Biology, University of Pécs , Ifjúság u. 6, 7624 Pécs, Hungary
Jakab, Gabor
Autor Jakab, Gabor Institute of Biology, University of Pécs , Ifjúság u. 6, 7624 Pécs, Hungary. Research Institute for Viticulture and Oenology, University of Pécs , Pázmány P. u. 4, 7634 Pécs, Hungary
Jansen, Marcel A K
Autor Jansen, Marcel A K School of Biological, Environmental and Earth Sciences, University College Cork , College Road, Cork, Ireland
Jug, Tjaša
Autor Jug, Tjaša Agricultural and Forestry Institute of Nova Gorica , Pri hrastu 18, 5270 Nova Gorica, Slovenia
Llorens, Laura
Autor Llorens, Laura Department of Environmental Sciences, Faculty of Sciences, University of Girona, Campus Montilivi , Maria Aurèlia Capmany i Farnés 69, 17003 Girona, Spain
Mátai, Anikó
Autor Mátai, Anikó Institute of Biology, University of Pécs , Ifjúság u. 6, 7624 Pécs, Hungary
Martínez-Lüscher, Johann
Autor Martínez-Lüscher, Johann UMR 1287 EGFV, Bordeaux Sciences Agro, INRA, Université de Bordeaux, ISVV , 33882 Villenave d'Ornon, France

Journal of agricultural and food chemistry. 2016 ; 64 (46) : 8722-8734. [pub] 20161110

J Agric Food Chem
ISSN 1520-5118
Medvik
Zdroj

Mature berries of Pinot Noir grapevines were sampled across a latitudinal gradient in Europe, from southern Spain to central Germany. Our aim was to study the influence of latitude-dependent environmental factors on the metabolite composition (mainly phenolic compounds) of berry skins. Solar radiation variables were positively correlated with flavonols and flavanonols and, to a lesser extent, with stilbenes and cinnamic acids. The daily means of global and erythematic UV solar radiation over long periods (bud break-veraison, bud break-harvest, and veraison-harvest), and the doses and daily means in shorter development periods (5-10 days before veraison and harvest) were the variables best correlated with the phenolic profile. The ratio between trihydroxylated and monohydroxylated flavonols, which was positively correlated with antioxidant capacity, was the berry skin variable best correlated with those radiation variables. Total flavanols and total anthocyanins did not show any correlation with radiation variables. Air temperature, degree days, rainfall, and aridity indices showed fewer correlations with metabolite contents than radiation. Moreover, the latter correlations were restricted to the period veraison-harvest, where radiation, temperature, and water availability variables were correlated, making it difficult to separate the possible individual effects of each type of variable. The data show that managing environmental factors, in particular global and UV radiation, through cultural practices during specific development periods, can be useful to promote the synthesis of valuable nutraceuticals and metabolites that influence wine quality.