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Article

Free Monoterpene Isomer Profiles of Vitis Vinifera L. cv. White Wines

1
Department of Food Science & Technology, Oregon State University, Corvallis, OR 97331, USA
2
Department of Statistics, Oregon State University, Corvallis, OR 97331, USA
*
Author to whom correspondence should be addressed.
Foods 2018, 7(2), 27; https://doi.org/10.3390/foods7020027
Received: 26 January 2018 / Revised: 13 February 2018 / Accepted: 17 February 2018 / Published: 21 February 2018
(This article belongs to the Special Issue Wine Composition and Quality Analysis)
Monoterpene compounds contribute floral and fruity characters to wine and are desired by grape growers and winemakers for many white wines. However, monoterpene isomers, especially monoterpene enantiomers, have been little explored. It is possible to identify and quantitate 17 monoterpene isomers in 148 varietal wines from eight grape varieties; Chardonnay, Gewürztraminer, Muscat, Pinot gris, Riesling, Sauvignon blanc, Torrontes, and Viognier in two vintages by Headspace solidphase microextraction multidimensional gas chromatography mass spectrometry (HS-SPME-MDGC-MS). Results obtained from general linear models and discriminant analysis showed significant differences for the isomer profiles and enantiomer fractions among the eight grape varieties and four wine styles. The high R2 values from the fitted line show low variation in enantiomeric differences based on variety. These results provide an overview of the monoterpene isomers of wide varietal wines, and support that isomer profiles and enantiomer fractions could differentiate our wines by varietal and wine style. View Full-Text
Keywords: chiral; enantiomer fraction; MDGC-MS; discriminant analysis; general linear model chiral; enantiomer fraction; MDGC-MS; discriminant analysis; general linear model
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MDPI and ACS Style

Song, M.; Fuentes, C.; Loos, A.; Tomasino, E. Free Monoterpene Isomer Profiles of Vitis Vinifera L. cv. White Wines. Foods 2018, 7, 27. https://doi.org/10.3390/foods7020027

AMA Style

Song M, Fuentes C, Loos A, Tomasino E. Free Monoterpene Isomer Profiles of Vitis Vinifera L. cv. White Wines. Foods. 2018; 7(2):27. https://doi.org/10.3390/foods7020027

Chicago/Turabian Style

Song, Mei, Claudio Fuentes, Athena Loos, and Elizabeth Tomasino. 2018. "Free Monoterpene Isomer Profiles of Vitis Vinifera L. cv. White Wines" Foods 7, no. 2: 27. https://doi.org/10.3390/foods7020027

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