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Food Chem

Title:		Volatile composition and sensory properties of wines from vineyards affected by iron chlorosis
Author(s):		Sanchez R; Rodriguez-Nogales JM; Fernandez-Fernandez E; Gonzalez MR; Medina-Trujillo L; Martin P;
Address:		"Research Group on Viticulture and Enology (GIRVITEN), University of Valladolid, Av. de Madrid, 57, 34004 Palencia, Spain. Research Group on Viticulture and Enology (GIRVITEN), University of Valladolid, Av. de Madrid, 57, 34004 Palencia, Spain. Electronic address: josemanuel.rodriguez@uva.es"
Journal Title:		Food Chem
Year:		2022
Volume:		20210813
Issue:
Page Number:		130850 -
DOI:		10.1016/j.foodchem.2021.130850
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Recent studies have shown that mild to moderate iron chlorosis can have positive effects on grape quality potential, including volatile profile. The main objective of this work was to investigate, for the first time, how moderate iron stress in grapevines affects the presence of volatile organic compounds (VOCs) in wines. The study was carried out during 2018-2019 seasons, in 20 Tempranillo vineyard subzones with different degree of iron deficiency, located in Ribera del Duero (North-Central Spain). The results showed that moderate iron stress increased in wines the concentrations of VOCs associated with floral notes, such as 2-phenylacetaldehyde, 2-phenylethanol and 2-phenylethyl acetate, while reducing the presence of C6-alcohols, responsible for green-herbaceous aroma. A favourable reduction of pH and a betterment of parameters related to colour were detected in wines from iron deficient subzones. Chlorosis incidence was associated to improvements in wine sensory attributes as layer intensity, black fruit and aroma intensity"
Keywords:		"*Anemia, Hypochromic Farms Fruit/chemistry Humans Iron Odorants/analysis *Vitis *Volatile Organic Compounds/analysis *Wine/analysis Aroma Nutritional stress Tempranillo Vitis vinifera;"
Notes:		"MedlineSanchez, Ramon Rodriguez-Nogales, Jose Manuel Fernandez-Fernandez, Encarnacion Gonzalez, Maria Rosa Medina-Trujillo, Laura Martin, Pedro eng England 2021/08/31 Food Chem. 2022 Feb 1; 369:130850. doi: 10.1016/j.foodchem.2021.130850. Epub 2021 Aug 13"