Identificación y discriminación de tequilas reposados in situ para la protección de marca
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UV-Vis spectroscopy
multivariate analysis Tequila
espectroscopia UV-Visible
análisis multivariado

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Contreras-Loera, U., Barbosa-García, O., Ramos-Ortíz, G., Pichardo-Molina, J., Meneses-Nava, M., & Maldonado, J. (2014). Identificación y discriminación de tequilas reposados in situ para la protección de marca. Nova Scientia, 1(2), 22–32.


The UV-Visible absorption spectra of four well-known brands of rested Tequilas were analized using multivariate tecniques in order to identify brands. This methodology can be performed in situ therefore it can be implemented as a protection means of the beverage brand. 40 samples of rested Tequilas were purchased from bars and liquor stores in the cities of Zacatecas, Zac and Leon, Gto. and we were looking for similarities and differences among the tested brands for grouping and predictions over new testing samples. This work describes the used methodology for those alcoholic beverages which is complementary to the methodology used through analytical chemistry. The methodoly shows results in minutes and can be performed in situ, this Contreras, U. et al. Revista Electrónica Nova Scientia, Nº 2 Vol. 1 (1), 2009. ISSN 2007 - 0705. pp: 22 - 32 - 24 - in contrast to chromatography techniques. The results show a nice grouping of tequilas according to the corresponding brand such that any new testing tequila could be classified among the studied brands.
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