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Electronic nose for the identification of pig feeding and ripening time in Iberian hams

J.P.Santos; M.García; M.Aleixandre; M.C. Horrillo; J. Gutiérrez; I. Sayago; M.J. Fernández; L. Arés
Meat Science. 66, pp. 727 -732
http://dx.doi.org/10.1016/j.meatsci.2003.07.005

An electronic nose system to control the processing of dry-cured Iberian ham is presented. The sensors involved are tin oxide semiconductors thin films. They were prepared by RF sputtering. Some of the sensors were doped with metal catalysts as Pt and Pd, in order to improve the selectivity of the sensors. The multisensor with 16 semiconductor sensors, gave different responses from two types of dry-cured Iberian hams which differ in the feeding and curing time. The data has been analysed using the PCA (principal component analysis) and backpropagation and probabilistic neural networks. The analysis shows that different types of Iberian ham can be discriminated and identified successfully.

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