RT journal article T1 Influence of Prefermentative Cold Maceration on the Chemical and Sensory Properties of Red Wines Produced in Warm Climates A1 Lasanta Melero, Cristina A1 Cejudo Bastante, Cristina A1 Gómez Benítez, Juan A1 Caro Pina, Ildefonso A2 Ingeniería Química y Tecnología de Alimentos K1 prefermentative coldmaceration K1 redwine K1 wine aromatic profile K1 bottle aging K1 warmclimate AB Red wines produced in warm climates generally possess a lower content of phenolic compoundsand color structure than those produced in colder climates, which hinders bottle evolution.To improve these properties, cold maceration could be a useful procedure. To study the effect of thistechnique, Tempranillo, Merlot and Syrah grape varieties cultivated in the Jerez area (SouthwestSpain) were cold macerated at 4 C for ten days before alcoholic fermentation. Their compositionand characteristics compared to the directly fermented control grapes were analyzed for phenoliccontent, color, volatile compounds, and sensory properties. It has been verified that phenolic contentincreased by around 10% during the treatment, which was maintained after the alcohol fermentation,along with an increase in color intensity and aromatic profile. This modification on the compositionprovided better scores for appearance, aroma intensity, and aroma quality in sensory analysis. Theevolution of all studied parameters during 12 months of aging in the bottle is also studied, confirmingthe advantages of this technique in preserving the compositional and sensory characteristicsthroughout the period studied. PB MDPI SN 2227-9717 YR 2023 FD 2023 LK http://hdl.handle.net/10498/32450 UL http://hdl.handle.net/10498/32450 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-nov-2026