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- Title
On the fractional-order modeling of wine.
- Authors
Lopes, António; Machado, J.; Ramalho, Elisa
- Abstract
This paper uses electrical impedance spectroscopy for characterizing different varieties of wine and compares the results with standard chemical analysis. In a first phase, the electrical impedance of wine samples is measured and modeled by means of fractional-order transfer functions. The impedance model parameters are then correlated with chemical data to unveil potential relationships between the distinct descriptions. In a second phase, the multidimensional scaling technique is adopted for data clustering and visualizing. The methodology is illustrated on a set of commercially available wines. The results demonstrate that fractional-order models represent conveniently the impedance of wine, with a reduced number of parameters.
- Subjects
WINES; ELECTRICAL impedance tomography; TRANSFER functions; ANALYTICAL chemistry; CLUSTERING of particles
- Publication
European Food Research & Technology, 2017, Vol 243, Issue 6, p921
- ISSN
1438-2377
- Publication type
Article
- DOI
10.1007/s00217-016-2806-x