In compliance with the European law (EC N. 510/2006), geographical indications and designations of origin for agricultural products and foodstuffs must be protected against mislabelling. This is particularly important for PDO hard cheeses, as Parmigiano Reggiano, that can cost up to the double of the no-PDO competitors. This paper presents two statistical models, based on isotopic and elemental composition, able to trace the origin of cheese also in grated and shredded forms, for which it is not possible to check the logo fire-marked on the rind. One model is able to predict the origin of seven types of European hard cheeses (in a validation step, 236 samples out of 240 are correctly recognised) and the other specifically to discriminate the PDO Parmigiano Reggiano cheese from 9 European and 2 extra-European imitators (260 out of 264 correct classifications). Both models are based on Random Forests. The most significant variables for cheese traceability common in both models are δ13 C, δ2H, δ15N, δ34S and Sr, Cu, Mo, Re, Na, U, Bi, Ni, Fe, Mn, Ga, Se, and Li. These variables are linked not only to geography, but also to cow diet and cheese making processes.

H, C, N and S stable isotopes and mineral profiles to objectively guarantee the authenticity of grated hard cheeses / Camin, Federica; Wehrens, Herman Ronald Maria Johan; Bertoldi, Daniela; Bontempo, Luana; Ziller, Luca; Perini, Matteo; Nicolini, Giorgio; Nocetti, M.; Larcher, Roberto. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - 711:1(2012), pp. 54-59. [10.1016/j.aca.2011.10.047]

H, C, N and S stable isotopes and mineral profiles to objectively guarantee the authenticity of grated hard cheeses

Camin, Federica;Bertoldi, Daniela;Nicolini, Giorgio;Larcher, Roberto
2012

Abstract

In compliance with the European law (EC N. 510/2006), geographical indications and designations of origin for agricultural products and foodstuffs must be protected against mislabelling. This is particularly important for PDO hard cheeses, as Parmigiano Reggiano, that can cost up to the double of the no-PDO competitors. This paper presents two statistical models, based on isotopic and elemental composition, able to trace the origin of cheese also in grated and shredded forms, for which it is not possible to check the logo fire-marked on the rind. One model is able to predict the origin of seven types of European hard cheeses (in a validation step, 236 samples out of 240 are correctly recognised) and the other specifically to discriminate the PDO Parmigiano Reggiano cheese from 9 European and 2 extra-European imitators (260 out of 264 correct classifications). Both models are based on Random Forests. The most significant variables for cheese traceability common in both models are δ13 C, δ2H, δ15N, δ34S and Sr, Cu, Mo, Re, Na, U, Bi, Ni, Fe, Mn, Ga, Se, and Li. These variables are linked not only to geography, but also to cow diet and cheese making processes.
1
Camin, Federica; Wehrens, Herman Ronald Maria Johan; Bertoldi, Daniela; Bontempo, Luana; Ziller, Luca; Perini, Matteo; Nicolini, Giorgio; Nocetti, M.; Larcher, Roberto
H, C, N and S stable isotopes and mineral profiles to objectively guarantee the authenticity of grated hard cheeses / Camin, Federica; Wehrens, Herman Ronald Maria Johan; Bertoldi, Daniela; Bontempo, Luana; Ziller, Luca; Perini, Matteo; Nicolini, Giorgio; Nocetti, M.; Larcher, Roberto. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - 711:1(2012), pp. 54-59. [10.1016/j.aca.2011.10.047]
File in questo prodotto:
File Dimensione Formato  
2012 ACA Camin et al.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 665.12 kB
Formato Adobe PDF
665.12 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/266209
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 67
  • ???jsp.display-item.citation.isi??? 59
social impact