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An electronic tongue for juice level evaluation in non-alcoholic beverages
Peres, António M.; Dias, L.G.; Barcelos, Tânia P.; Morais, Jorge Sá; Machado, A.A.S.C.An electronic tongue with 36 cross-sensibility polymeric membranes was built and used for semi-quantitative analysis of beverages. The objective was to differentiate 4 non-alcoholic beverage groups with different added fruit juice contents: higher than 30%, between 14%-30%, 5%-10% and 0.1%-2%. A set of 16 Portuguese beverages (4 for each group), purchased in commercial supermarkets, was analyzed and the respect...
An electronic tongue for juice level evaluation in non-alcoholic beverages
Peres, António M.; Dias, L.G.; Barcelos, Tânia P.; Morais, Jorge Sá; Machado, A.A.S.C.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 tongu...
An electronic tongue for beer differentiation
Dias, L.G.; Peres, António M.; Barcelos, Tânia P.; Morais, Jorge Sá; Machado, A.A.S.C.In this work an electronic tongue, based on a potentiometric solid-state mufti-sensor array, with 36 polymeric membranes, was built for developing an analytical tool to apply in process monitoring and quality control. As a first approach, this tool was applied together with a supervised pattern recognition tool to semi-quantitatively differentiate beers with different alcoholic levels.
Análise semi-quantitativa e quantitativa de bebidas não alcoólicas com uma líng...
Barcelos, Tânia P.Neste trabalho usou-se uma língua electrónica constituída por dois sistemas de multi-sensores, com 40 membranas poliméricas sensibilidade cruzada, com composições diferentes, e um eléctrodo de referência Ag/AgCl. O sistema foi aplicado na análise semi-quantitativa de bebidas não alcoólicas e na quantificação das concentrações de compostos orgânicos e açúcares existentes nessas bebidas. As concentrações de açúca...
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