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TitlePractical procedure for discriminating monofloral honey with a broad pollen profile variability using an electronic tongue
Author(s)Sousa, Mara E. B. C.
Dias, Luís G.
Veloso, Ana C. A.
Estevinho, Letícia
Peres, António M.
Machado, Adélio A. S. C.
KeywordsElectronic tongue
Monofloral honey
Honey colour
Linear discriminant analysis
Simulated annealing algorithm
Issue date2014
Abstract(s)Colour and floral origin are key parameters that may influence the honey market. Monofloral light honey are more demanded by consumers, mainly due to their flavour, being more valuable for producers due to their higher price when compared to darker honey. The latter usually have a high anti-oxidant content that increases their healthy potential. This work showed that it is possible to correctly classify monofloral honey with a high variability in floral origin with a potentiometric electronic tongue after making a preliminary selection of honey according their colours: white, amber and dark honey. The results showed that the device had a very satisfactory sensitivity towards floral origin (Castanea sp., Echium sp., Erica sp., Lavandula sp., Prunus sp. and Rubus sp.), allowing a leave-one-out cross validation correct classification of 100%. Therefore, the E-tongue shows potential to be used at analytical laboratory level for honey samples classification according to market and quality parameters, as a practical tool for ensuring monofloral honey authenticity.
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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