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https://hdl.handle.net/2440/23906
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Type: | Journal article |
Title: | An odour detection threshold determination of all four possible stereoisomers of oak lactone in a white and a red wine |
Author: | Brown, R. Sefton, M. Taylor, D. Elsey, G. |
Citation: | Australian Journal of Grape and Wine Research, 2006; 12(2):115-118 |
Publisher: | Australian Society of Viticulture and Oenology |
Issue Date: | 2006 |
ISSN: | 1322-7130 1755-0238 |
Statement of Responsibility: | Rachel C. Brown, Mark A. Sefton, Dennis K. Taylor and Gordon M. Elsey |
Abstract: | Odour detection thresholds were determined for all four stereoisomers of oak lactone in both red and white wine. The natural cis-isomer was found to have a significantly lower detection threshold than its non-natural enantiomer in both media, and lower than indicated by most other sensory studies. The odour detection threshold for the natural trans-isomer was seven times higher than for the natural cis. Compared to its enantiomer, the natural trans-isomer had a lower detection threshold in the white wine medium, but slightly higher in the red. Duo-trio difference testing between the two trans-isomers added at the same concentration showed no significant difference between the two for both media. Similarly, a duo-trio test conducted between the natural cis-isomer and a mixture of the same amount of natural cis-oak lactone plus an equivalent concentration of the trans-isomer indicated that the latter had little or no influence on the odour impact of the cis-form. |
Keywords: | oak oak lactone whiskey lactone odour detection thresholds difference tests |
Description: | Copyright © 2008 Australian Society of Viticulture and Oenology Inc. |
DOI: | 10.1111/j.1755-0238.2006.tb00050.x |
Published version: | http://www3.interscience.wiley.com/journal/120128282/abstract |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 6 |
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