Authentication of tequila by gas chromatography and stable isotope ratio analyses
Gas chromatographic (GC) determination of volatile constituents and isotope ratio mass spectrometry (IRMS) analysis of ^sup 13^C/^sup 12^C isotope ratios as well as SNIF-NMR analysis of (D/H)-ratios of ethanol in authentic (n=12) and commercial tequila samples (n=13) were used to differentiate analy...
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Published in | European food research & technology Vol. 217; no. 5; pp. 438 - 443 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English German |
Published |
Heidelberg
Springer
01.11.2003
Berlin Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Gas chromatographic (GC) determination of volatile constituents and isotope ratio mass spectrometry (IRMS) analysis of ^sup 13^C/^sup 12^C isotope ratios as well as SNIF-NMR analysis of (D/H)-ratios of ethanol in authentic (n=12) and commercial tequila samples (n=13) were used to differentiate analytically between tequila derived from 100% agave (Agave tequilana Weber var. Azul) and tequila produced with other fermentable sugars ('mixed' tequila). Evaluating the correlation of methanol and 2-/3-methyl-1-butanol concentrations, GC analysis was found to be a suitable method for the authenticity assessment of '100% agave' and 'mixed' tequilas. Additional determinations of δ^sup 13^C^sub VPDB^ and (D/H) ratios of ethanol were used to show the perspectives and limits of the methods.[PUBLICATION ABSTRACT] |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1438-2377 1438-2385 |
DOI: | 10.1007/s00217-003-0782-4 |