Abstract
Seven kinds of bovine milk cheese (Asiago, N = 16; Fontina, N = 16; Montasio, N = 16; Puzzone, N = 14; Spressa, N = 15; Toma, N = 16; Vezzena, N = 16) produced in alpine and pre-alpine Italian areas are described using the isotopic ratios of C, N, O, S and Sr and the contents of 49 mineral elements. A multivariate discriminant analysis based on Ba, Ca, K, Mg, Rb, δ 13C casein, δ 15N casein and δ 18O glycerol correctly classified 94% of the 109 samples with a maximum of 100% in the case of Fontina and Puzzone, δ 13C casein and δ 13C glycerol provided an estimation of the maize uptake in the animals’ diet and Protected Designation of Origin protocol observance.
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