RT journal article
T1 Effects from the Freezing of Either Whole or Crushed Grapes on the Volatile Compounds Contents in Muscat Wines
A1 Pedrosa-López, María del Carmen
A1 Aragón García, Fátima
A1 Ruiz Rodríguez, Ana
A1 Piñeiro, Zulema
A1 Durán Guerrero, Enrique
A1 Palma Lovillo, Miguel
A2 Química Analítica
K1 aroma
K1 cryoextraction
K1 prefermentative maceration
K1 Muscat grapes
AB The transfer of aromatic compounds from the grape skins to the musts has been studied using a process involving freezing whole bunches or crushed grapes for winemaking the Muscat of Alexandria variety (white wine). Subsequently, a prefermentative maceration has been applied to some of the samples. The aromatic profiles of the final wines have been determined using gas chromatography coupled to mass spectrophotometry (GC-MS). The results revealed that, in the trials in which whole grapes were frozen, the final wines had a higher aromatic concentration compared to that of wines obtained by either freezing crushed grapes or obtained with traditional winemaking techniques. Thus, the wines produced from frozen whole grapes were found to exhibit different characteristics from the rest of the wines. The compounds affected by the freezing either of the whole bunches or the crushed grapes were terpenes, acids, and esters. Lower differences were found for wines produced applying prefermentative maceration after the freezing process.
PB MDPI
SN 2304-8158
YR 2022
FD 2022-06
LK http://hdl.handle.net/10498/27489
UL http://hdl.handle.net/10498/27489
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026