title: Accelerated aging against conventional storage: effects on the volatile composition of chardonnay white wines.
abstract: The effects of time (storage period) and temperature (accelerated aging) on Chardonnay white wines have been evaluated. Attention was focused on a large extent of individual volatile compounds, scarcely previously reported in that kind of wines. On the one hand, several volatile compounds (mainly esters, benzenic compounds, C13 -norisoprenoids, acids, and terpenes) showed the same behavior when temperature and time were applied separately. Therefore, the effect of 1 y of storage could be predicted by temperature application during short time, just analyzing those volatile compounds. Moreover, the formation of some volatile compounds (such as dioxanes, dioxolanes, and 1,2-dihydro-1,1,6-trimethylnaphtalene (TDN)) and the disappearance of some alcohols, terpenes, and furanic compounds occurred in both conventional stored and accelerated-aged wines. On the other hand, wines submitted to high temperature differed from 1-y stored wines on several volatile compounds, such as β-damascenone, C6 -alcohols, dioxolanes, γ-butyrolactone, and TDN. Therefore, it is possible to assert that the analysis of these compounds could allow checking the possible inadequate handling by employing an excessive temperature.
authors.affiliation: Analytical Chemistry and Food Science Dept., Facultad de Ciencias Químicas, Avda, Ciudad Real, Spain. mariajesus.cejudo@uca.es
authors.forename: María Jesús
authors.initials: MJ
authors.lastname: Cejudo-Bastante
authors.forename: Isidro
authors.initials: I
authors.lastname: Hermosín-Gutiérrez
authors.forename: María Soledad
authors.initials: MS
authors.lastname: Pérez-Coello
mesh_terms: D015107:4-Butyrolactone / Q000032:analysis; D004952:Esters / Q000032:analysis; D061353:Food Storage / Q000379:methods*; D045792:Norisoprenoids / Q000032:analysis; D013696:Temperature; D013729:Terpenes / Q000032:analysis; D027843:Vitis / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000032:analysis*; D014920:Wine / Q000032:analysis*
chemical_list: D004952:Esters; D045792:Norisoprenoids; D013729:Terpenes; D055549:Volatile Organic Compounds; D015107:4-Butyrolactone; C075388:beta-damascenone