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Molecules

Title:		"Volatile Compounds from Grape Skin, Juice and Wine from Five Interspecific Hybrid Grape Cultivars Grown in Quebec (Canada) for Wine Production"
Author(s):		Slegers A; Angers P; Ouellet E; Truchon T; Pedneault K;
Address:		"Centre de Developpement Bioalimentaire du Quebec, La Pocatiere, QC G0R 1Z0, Canada. amelie.slegers.1@ulaval.ca. Department of Food Science, Universite Laval, Quebec, QC G1V 0A6, Canada. amelie.slegers.1@ulaval.ca. Department of Food Science, Universite Laval, Quebec, QC G1V 0A6, Canada. paul.angers@fsaa.ulaval.ca. Centre de Developpement Bioalimentaire du Quebec, La Pocatiere, QC G0R 1Z0, Canada. etienne.ouellet@cdbq.net. Department of Food Science, Universite Laval, Quebec, QC G1V 0A6, Canada. tamara.truchon.1@ulaval.ca. Centre de Developpement Bioalimentaire du Quebec, La Pocatiere, QC G0R 1Z0, Canada. karine.pedneault@cdbq.net. Department of Food Science, Universite Laval, Quebec, QC G1V 0A6, Canada. karine.pedneault@cdbq.net"
Journal Title:		Molecules
Year:		2015
Volume:		20150615
Issue:		6
Page Number:		10980 - 11016
DOI:		10.3390/molecules200610980
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Developed from crosses between Vitis vinifera and North American Vitis species, interspecific hybrid grape varieties are becoming economically significant in northern areas, where they are now extensively grown for wine production. However, the varietal differences between interspecific hybrids are not well defined, nor are the relationships between hybrid grape and wine composition, which causes significant drawbacks in the development of viticulture and winemaking of northern wines. In an effort to increase our understanding of interspecific hybrids, we have characterized the free volatile compounds profiles of berries (juice and skin) and wines of five red hybrid varieties (Frontenac, Marquette, Marechal Foch, Sabrevois and St. Croix) grown in Quebec (Canada), using GC-MS(TOF)-SPME. In grapes and wines, significantly higher levels of C6 and other fatty acid degradation products (FADP) were found in Frontenac, Marechal Foch and Marquette. Terpenes were primarily located in the skin, with Marquette showing the highest level for these compounds. Both the level of terpenes and the level of FADP in grape were strongly correlated with their respective levels in wine, as demonstrated by the redundancy analyses. Nonanal, (E,Z)-2,6-nonadienal, beta-damascenone, ethyl octanoate and isoamyl acetate showed the highest OAVs in the wines of the studied varieties"
Keywords:		Quebec Vitis/*chemistry Volatile Organic Compounds/*chemistry Wine/*analysis Frontenac Gc-ms-spme Marechal Foch Marquette Sabrevois St.Croix Vitis cold climate viticulture volatile compounds;
Notes:		"MedlineSlegers, Amelie Angers, Paul Ouellet, Etienne Truchon, Tamara Pedneault, Karine eng Research Support, Non-U.S. Gov't Switzerland 2015/06/18 Molecules. 2015 Jun 15; 20(6):10980-1016. doi: 10.3390/molecules200610980"