A GC-MS study of the composition of nine different grappas (Italian grape marc spirit) was carried out.High-weight alcohols showed the greatest variations, while the lower congener concentrations generally were more uniform. Particularly interesting is the presence of 1,1-diethoxy-3-methylbutane (DMB), never detected before in grappa. DMB was present in all samples, ranging from 0.8 up to 30.6 mg L-1. This latter concentration was the highest detected in an alcoholic beverage so far. A discussion on the other volatile congeners was also reported. Principal component analysis was applied to the data and explained[80% of the whole variability. Most grappas are grouped in a single cluster, while the other samples are completely separated. DMB, ethyl acetate, ethyl lactate, and n-butanol are some examples of constituent able to differentiate the tested products.

Composition of some commercial grappas (grape marc spirit):the anomalous presence of 1,1-diethoxy-3-methylbutane:a case study / Masino, Francesca; Montevecchi, Giuseppe; C., Riponi; Antonelli, Andrea. - In: EUROPEAN FOOD RESEARCH AND TECHNOLOGY. - ISSN 1438-2377. - ELETTRONICO. - 228:(2009), pp. 565-569. [10.1007/s00217-008-0963-2]

Composition of some commercial grappas (grape marc spirit):the anomalous presence of 1,1-diethoxy-3-methylbutane:a case study

MASINO, Francesca;MONTEVECCHI, Giuseppe;ANTONELLI, Andrea
2009

Abstract

A GC-MS study of the composition of nine different grappas (Italian grape marc spirit) was carried out.High-weight alcohols showed the greatest variations, while the lower congener concentrations generally were more uniform. Particularly interesting is the presence of 1,1-diethoxy-3-methylbutane (DMB), never detected before in grappa. DMB was present in all samples, ranging from 0.8 up to 30.6 mg L-1. This latter concentration was the highest detected in an alcoholic beverage so far. A discussion on the other volatile congeners was also reported. Principal component analysis was applied to the data and explained[80% of the whole variability. Most grappas are grouped in a single cluster, while the other samples are completely separated. DMB, ethyl acetate, ethyl lactate, and n-butanol are some examples of constituent able to differentiate the tested products.
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Composition of some commercial grappas (grape marc spirit):the anomalous presence of 1,1-diethoxy-3-methylbutane:a case study / Masino, Francesca; Montevecchi, Giuseppe; C., Riponi; Antonelli, Andrea. - In: EUROPEAN FOOD RESEARCH AND TECHNOLOGY. - ISSN 1438-2377. - ELETTRONICO. - 228:(2009), pp. 565-569. [10.1007/s00217-008-0963-2]
Masino, Francesca; Montevecchi, Giuseppe; C., Riponi; Antonelli, Andrea
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/591784
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