Université de Neuchâtel

Analytical methods for the determination of the geographic origin of Emmentaler cheese. Main framework of the project; chemical, biochemical, microbiological, colour and sensory analyses

Pillonel, L. ; Badertscher, R. ; Bütikofer, U. ; Casey, M. ; Dalla Torre, M. ; Lavanchy, P. ; Meyer, J. ; Tabacchi, Raphael ; Bosset, Jacques-Olivier

In: European Food Research and Technology, 2002, vol. 215, no. 3, p. 260-267

Emmentaler is a hard cheese produced and consumed in many countries. The authenticity of this cheese variety is becoming a matter of national importance with the imminent opening of the cheese market in Switzerland and the introduction of the PDO label for the Emmentaler Switzerland™. This paper is the first in a series reporting the search for parameters that make possible a geographic...

Université de Neuchâtel

Geographic origin of European Emmental. Use of discriminant analysis and artificial neural network for classification purposes

Pillonel, Laurent ; Bütikofer, U. ; Schlichtherle-Cerny, H. ; Tabacchi, Raphael ; Bosset, Jacques-Olivier

In: International Dairy Journal, 2005, vol. 15, no. 6-9, p. 557-562

The goal of this work was to classify European Emmental cheeses according to their geographic origin using analytical approaches. Twenty-five analytical parameters (factors) were measured in 183 samples. Results were combined by multivariate statistical analysis. Discriminant analysis (DA) and an artificial neural network (ANN) delivered similar results when all regions and factors were included;...

Université de Neuchâtel

Geographic origin of European Emmental cheese: Characterisation and descriptive statistics

Pillonel, Laurent ; Badertscher, R. ; Casey, M. ; Meyer, J. ; Rossmann, A. ; Schlichtherle-Cerny, H. ; Tabacchi, Raphael ; Bosset, Jacques-Olivier

In: International Dairy Journal, 2005, vol. 15, no. 6-9, p. 547-556

To survey the authenticity of Emmental cheese from some of the main European countries of origin, samples of cheeses manufactured during winter (110 samples) and summer (73 samples) were collected. From a preliminary study, a series of promising analytical methods were selected and applied: total nitrogen, water soluble nitrogen (WSN), 12% TCA soluble nitrogen (TCA-SN), pH-value, volatile...