RT info:eu-repo/semantics/article T1 Impact of ageing on ultrasound-treated lees on volatile composition and sensory properties of red sparkling base wine A1 Blanco Huerta, Coro A1 Fernández Fernández, Encarnación A1 Vila Crespo, Josefina María A1 Ruipérez Prádanos, Violeta A1 Moyano Gracia, Raúl A1 Rodríguez Nogales, José Manuel K1 Aroma K1 Sparkling wine K1 Vinos espumosos K1 Red wines K1 Vinos tintos K1 Wine and wine making - Analysis K1 Vinos y vinificación - Análisis K1 Volatile compounds K1 Organoleptic properties K1 Ultrasound K1 Ultrasonidos K1 Food science K1 3102 Ingeniería Agrícola K1 3309.29 Vino K1 3309 Tecnología de Los Alimentos AB Ageing on lees can be a good technique to enhance the quality of red sparkling base wines. Ultrasound treatment of the lees, prior to addition to the wine, can improve the releasing of their components into the wine. This study carries out a four month ageing on lees of a red sparkling base wine by the addition of lees sonicated at different amplitude levels: 30%, 60% and 90% for 10 min. The ageing on ultrasound-treated lees improved the quality of the red base wine, with a greater impact the higher the amplitude of the applied ultrasound. Sonicated lees at an amplitude of 90% enlarged the concentration of neutral polysaccharides in the wine and reduced its astringency, which was evaluated chemically. Furthermore, this treatment enhanced the concentration of some volatile compounds in the wine, mainly acetates, esters and terpenes with floral and fruity aromatic notes. This trend was also found for some fused alcohols, contributing to the aromatic complexity of wines, as well as for 2-phenylethanol, an alcohol with a rose-like aroma, and also for C6-alcohols with a green-herbaceous aroma. The results indicate that ultrasonication is a promising tool to increase the benefits of ageing on lees on the quality of red sparkling base wines. PB MDPI SN 2306-5710 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/69330 UL https://uvadoc.uva.es/handle/10324/69330 LA eng NO Beverages, 2023, Vol. 9, Nº. 1, 23 NO Producción Científica DS UVaDOC RD 06-ago-2024