1,3‐Dimethoxybenzene, a newly identified component of port wine

doi:10.1002/JSFA.1182

Paper

1,3‐Dimethoxybenzene, a newly identified component of port wine

Published Sep 1, 2002 · F. Rogerson, Z. Azevedo, Nélia Fortunato

Journal of the Science of Food and Agriculture

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13

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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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1,3-Dimethoxybenzene, a new volatile component of port wine, has a sweet medicinal odor with hazelnut, resinous, and woody notes, with threshold limits of 21 and 47 g l-1 in model wine and port wine, respectively.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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