1,3‐Dimethoxybenzene,a newly identified component of port wine |
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Authors: | Frank S
S Rogerson Zelia Azevedo Nlia Fortunato Victor A
P de Freitas |
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Affiliation: | Frank S S Rogerson,Zelia Azevedo,Nélia Fortunato,Victor A P de Freitas |
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Abstract: | 1,3‐Dimethoxybenzene was identified by GC–O, GC–MS and Kovats indices (polar Supelcowax, 1709; non‐polar Rtx‐5MS, 1158) as a new volatile component of port wine. Sensory evaluation described this compound as having a sweet medicinal odour with hazelnut, resinous and woody notes. Respective threshold limits in model wine and port wine were 21 and 47 µg l?1. Quantitative analysis by GC–MS, using a selected characteristic ion (m/z 138), indicated that young port wines from the 1998 vintage contained up to 3 µg l?1 whereas ports from the 1999 vintage contained up to 20 µg l?1. © 2002 Society of Chemical Industry |
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Keywords: | 1 3‐dimethoxybenzene port wine aroma wine spirit GC– MS GC– O |
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