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Food Technol Biotechnol

Title:		Changes in the Chemical Composition of Plum Distillate During Maturation with Oak Chips under Different Conditions
Author(s):		Balcerek M; Pielech-Przybylska K; Dziekonska-Kubczak U; Patelski P; Strak E;
Address:		"Department of Spirit and Yeast Technology, Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wolczanska 171/173,?ª+PL-90-924 Lodz, Poland"
Journal Title:		Food Technol Biotechnol
Year:		2017
Volume:		55
Issue:		3
Page Number:		333 - 359
DOI:		10.17113/ftb.55.03.17.5145
ISSN/ISBN:		1330-9862 (Print) 1334-2606 (Electronic) 1330-9862 (Linking)
Abstract:		"This study investigates the effect of ageing on the qualitative and quantitative composition of plum distillate in contact with oak wood chips. Maturation was performed with lightly toasted French oak (Quercus sessiflora and Quercus robur) chips or oak chips made from fragments of empty barrels that had been used for ageing cognac. The effects of oak chip dose, process temperature, ageing system (static or circulatory) and ultrasound treatment were assessed. Maturation of plum distillate samples with oak chips resulted in higher levels of extractable organics (including tannins) and colour changes, which were correlated with the type and dose of oak chips, and the conditions of maturation. The content of sugars such as glucose, xylose and arabinose also increased, depending on the conditions and type of oak chips. Degradation of lignin resulted in liberation of sinapaldehyde, syringaldehyde, coniferaldehyde and vanillin, with intensities depending on the applied parameters. In terms of volatiles, decreases in the concentration of higher alcohols and aliphatic aldehydes were observed in the majority of maturation experiments, while concentrations of furanic aldehydes increased depending on the type and dose of oak chips, as well as on the conditions of maturation. The quantities of esters such as ethyl acetate decreased in the majority of experimental variants, whereas concentrations of ethyl caproate, ethyl caprylate and ethyl caprate increased gradually. Some phenols and lactones were detected in all matured samples, with the lowest levels found in the samples aged with oak chips made from cognac barrels"
Keywords:		lactones maturation phenolic compounds plum brandy colour plum distillate volatile compounds;
Notes:		"PubMed-not-MEDLINEBalcerek, Maria Pielech-Przybylska, Katarzyna Dziekonska-Kubczak, Urszula Patelski, Piotr Strak, Ewelina eng Croatia 2017/11/02 Food Technol Biotechnol. 2017 Sep; 55(3):333-359. doi: 10.17113/ftb.55.03.17.5145"