Stable isotope signatures (δ2 H-, δ13 C-, δ15 N-values) of walnuts (Juglans regia L.) from different regions in Germany.
Stephanie KraußAnnika ViewegWalter VetterPublished in: Journal of the science of food and agriculture (2020)
The data presented here outlined the potential of determining isotopic fingerprints of walnuts from different sites within one country for tracing their regional origin and revealing their cultivation conditions. Including topographic characteristics between the sampling locations as well as precipitation data helped to even differentiate walnuts from two adjoining countries. © 2019 The Authors. Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.