RT journal article T1 Analytical and Chemometric Characterization of Fino and Amontillado Sherries during Aging in Criaderas y Solera System A1 Valcárcel Muñoz, Manuel J. A1 Guerrero Chanivet, María A1 Rodríguez Dodero, María del Carmen A1 García Moreno, María de Valme A1 Guillén Sánchez, Dominico Antonio A2 Química Analítica K1 fino K1 amontillado K1 sherry wine K1 criaderas y solera K1 wood K1 multiple linear regression AB Fino and Amontillado are Sherry wines, produced in Marco de Jerez area (southern Spain), and aged in Criaderas y Solera system. Fino Sherry wine follows a biological aging process, under a veil of flor yeasts, while Amontillado Sherry wine shares the same biological aging firstly, followed by oxidative aging, which gives them special features. Organic acids, esters, higher alcohols, phenolic compounds and total dry extract of Sherries evolve during aging due to evaporation processes, physical-chemical reactions, wood contributions and microbiological activity. During aging, Sherry wines improve their organoleptic profile, as could be proved in the tasting sessions. Hierarchical Cluster Analysis and Factor Analysis with factor extraction using Principal Components of Sherry wines studied were carried out and natural groupings of the wines according to the type of aging and their age were observed. A strong correlation between the parameters analyzed and the aging of each wine has been seen in the Multiple Linear Regression studies, establishing two different models, one for each type of Sherry wine, that, with only four of all the variables studied estimated the wine age with more than 99% of confidence. This constitutes a useful tool to control the age of these Sherry wines in the winery. PB MDPI SN 1420-3049 YR 2022 FD 2022-01 LK http://hdl.handle.net/10498/26538 UL http://hdl.handle.net/10498/26538 LA eng NO This research has been supported by the University of Cadiz and Bodegas Fundador, S.L.U. (ref.: OT2019/108, OT2020/128, OT2021/076). The authors wish to thank the University of Cadiz and Bodegas Fundador, S.L.U. for the industrial pre-doctoral contract TDI-8-18, granted to the author Maria Guerrero Chanivet. DS Repositorio Institucional de la Universidad de Cádiz RD 05-nov-2026