RT info:eu-repo/semantics/article T1 New system for simultaneous measurement of oxygen consumption and changes in wine color A1 Carrasco Quiroz, Marioli A1 Martínez Gil, Ana María A1 Nevares Domínguez, Ignacio Gerardo A1 Álamo Sanza, María del K1 Wine and wine making K1 Vinos y vinificación K1 Wine K1 Oxidation K1 Detectors K1 Oxygen K1 Oxígeno K1 Oxidación K1 Food science K1 Analytical chemistry K1 Agricultural engineering K1 Viticulture K1 Viticultura K1 Spectroscopy K1 Spectrum analysis K1 Análisis espectral K1 3309.29 Vino K1 3309 Tecnología de Los Alimentos K1 2301 Química Analítica K1 3102 Ingeniería Agrícola K1 1203.25 Diseño de Sistemas Sensores K1 2209.21 Espectroscopia AB The design, construction and validation of a device for the accurate measurement of the dissolved oxygen content in wine and simultaneously the variation of its spectral fingerprint is presented. The novelty of this system is due to two innovative approaches. First, robustness in measurements is obtained by using cuvettes designed to simultaneously measure the dissolved oxygen and color. Secondly, automatic monitoring is performed to ensure that measurements are always taken at the same cuvette position. The fine-tuning of the device with the study of white and red wines makes it possible, on the one hand, to establish the appropriate measurement conditions and, on the other hand, to determine the amount of oxygen required to cause specific changes in the wine spectrum, information that could not be obtained until now. The preliminary results are very interesting, presenting precise data on the amount of oxygen consumed by the wine and the variations in its visible spectrum, thus reflecting the modification of the responsible phenolic compounds. This information is of great interest, since it helps to optimize the handling of the wine and, if necessary, to moderate the uptake of oxygen in each type of wine to ensure the maintenance of the color during the winemaking and conservation processes of each type of wine. The results of the experiments indicate that this new instrument is feasible and accurate for detecting oxygen changes during wine production. PB MDPI SN 1420-3049 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/68038 UL https://uvadoc.uva.es/handle/10324/68038 LA eng NO Molecules, 2024, Vol. 29, Nº. 1, 231 NO Producción Científica DS UVaDOC RD 27-jun-2024