Characterization of animal products according to geographic origin and feeding diet using nuclear magnetic resonance and isotope ratio mass spectrometry. Part II : beef meat

J.P. Renou (1) , Guy Bielicki (1) , C. Deponge (1) , P. Gachon (2) , Didier Micol (3) , Patrick Ritz (4)

1 Station de recherches sur la viande
2 Centre de Recherche en Nutrition Humaine
3 URH - Unité de Recherches sur les Herbivores
4 CHU Angers - Centre Hospitalier Universitaire d'Angers

Meat samples from Charolais steers bred at different geographical sites in France and fed on either maize silage, indoors, or grass were analyzed using O-18 IRMS and H-1, H-2 and C-13 NMR spectroscopy. Some parameters showed significant differences according to the production site or feeding. A discriminant factorial analysis allowed the selection of four parameters to identify the production site and diet of the animals. All grazing steers were well classified, as were 94% of the steers fed on maize ensilage.

Mots clés: meat; lipids; water; fatty acid; nuclear magnetic resonance; isotopic ratio mass spectrometry; authentication; geographic origin; feeding diet

Domaines: Ingénierie des aliments; Génie des procédés; Sciences du Vivant [q-bio]; Informatique [cs]

J.P. Renou, Guy Bielicki, C. Deponge, P. Gachon, Didier Micol, et al.. Characterization of animal products according to geographic origin and feeding diet using nuclear magnetic resonance and isotope ratio mass spectrometry. Part II : beef meat. Food Chemistry, 2004, 86, pp.251-256. ⟨10.1016/j.foodchem.2003.08.021⟩. ⟨hal-02683115⟩