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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/3028

Título: An electronic tongue for juice level evaluation in non-alcoholic beverages
Autor: Peres, António M.
Dias, L.G.
Barcelos, Tânia P.
Morais, Jorge Sá
Machado, A.A.S.C.
Issue Date: 2009
Citação: Peres, A. M.; Dias, L. G.; Barcelos, T. P.; Sá Morais, J.; Machado, A. A. S. C. (2009) - An electronic tongue for juice level evaluation in non-alcoholic beverages. In Eurosensors XXIII, Lausanne
Resumo: An electronic tongue with 36 cross-sensibility polymeric membranes was built and applied for qualitative beverage analysis.
An electronic tongue with 36 cross-sensibility polymeric membranes was built and applied for qualitative beverage analysis. The objective was to distinguish non-a1coholic beverages with different leveis of added fruit juice. The different signal profiles recorded by the electronic tongue devi ce, together with a supervised , multivariate statistical method for pattem recognition, were used to differenliate 4 beverage groups with different added fruit juice contents: higher than 30%, between 14% and 30%, between 5% and 10% and between 0.1% and 2%. A set of 16 portuguese beverages (4 for each group), purchased in commercia[ superrnarkets, were analyzed. A stepwise linear discriminant analysis was used allowing a very satisfactory overall correct classification of 100% for the original grouped cases and of 93 .8% for the "[eaving one-out" cross-validation procedure
URI: http://hdl.handle.net/10198/3028
Appears in Collections:ARN - Resumos em Proceedings Não Indexados ao ISI/Scopus

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