Soil type affects grape juice free amino acids profile during ripening of cv. Malvasia Istriana (Vitis viniferaL.)

An overview about the impacts of agricultural practices on grape nitrogen composition: Current research approaches

“…Arginine and proline generally constitute the highest proportion of the total concentration of amino acids present in grapes (Table 1) and, their concentration, depends primarily on the variety (Stines et al, 2000;Lasa et al, 2012;Garde-Cerdán et al, 2014;Hannam et al, 2016; Pérez-Álvarez, Garde-Cerdán, García-Escudero, & Martínez-Vidaurre, 2017; Garde-Cerdán, Gutiérrez-Gamboa, Fernández-Novales, Pérez-Álvarez, & Diago, 2018a;Gutiérrez-Gamboa et al, 2018b;Gutiérrez-Gamboa & Moreno-Simunovic, 2019;Gutiérrez-Gamboa, Pérez-Álvarez, Rubio-Bretón, & Garde-Cerdan, 2019a;Palčić et al, 2020). In this sense, the proline to arginine ratio reflects the proportion of non-assimilable nitrogen (proline) to assimilable (arginine) by yeasts, providing an index of the nutritional value of the must of each particular variety (Bell & Henschke, 2005).…”

Effect of soil type on some composition parameters of Vitis vinifera L. cv. Nero d'Avola grapes at different stages of ripening

“…Although the greatest influence on grapevine growing is attributed to climate, it has been observed that uneven ripening principally depends on soil water content and vine water status, which are strongly related to the type of soil (Esteban et al ., 2001; Ubalde et al ., 2010). Although some authors (Ubalde et al ., 2010; Anesi et al ., 2015; Van Leeuwen et al ., 2018; Palčić et al ., 2020) observed that soil properties have a great influence on grapevine growing and grape quality, only recently a clear indication of their influence on wine quality have been attained (Blotevogel et al ., 2019; Palčić et al ., 2020; Bambina et al ., 2023). Following a previous study where the soil effect on the micro‐component composition of Nero d'Avola wines obtained from different locations were investigated through 1 H NMR‐based metabolomics (Bambina et al ., 2023), the present study aims at investigating the effects of the main soil chemical–physical features (e.g., texture, pH, total carbonates, cation exchange capacity, electric conductivity, organic matter, and mineral composition) on the heterogeneity of ripeness and on the chemical composition of berries at harvest (performed when the technological maturation was reached).…”