Application of Elicitors, as Conventional and Nano Forms, in Viticulture: Effects on Phenolic, Aromatic and Nitrogen Composition of Tempranillo Wines

The phenolic, aromatic and nitrogen composition of a wine determines its organoleptic profile quality. Elicitors have been used as tool to stimulate the plant’s defense systems, favoring synthesis secondary metabolites. In this pioneering study, elicitor methyl jasmonate in conventional form (MeJ) nanoparticle (ACP-MeJ), with concentration ten times lower, was applied Tempranillo vineyard over two seasons. volatile sensory properties MeJ-based wines were determined. results showed that effects foliar applications MeJ modify composition. Thus, although total most groups phenolic compounds not altered, several compounds, such petunidin-3-glucoside, quercetin-3-glucoside, epigallocatechin stilbenes, increased, both years, treated wines. Amino acids influenced differently each years studied, generally did improve However, ACP-MeJ best rated by tasters, highlighting their equilibrium on taste genuineness odor Therefore, can be considered useful