Characterising New Zealand butter using bulk and molecular multi-isotope analyses

KM Rogers, AM Philips, AG Immers, J Cooper, M Sim & J Fitzgerald
Food fraud is now a serious problem worldwide and the various methods of disguising the origin and authenticity of lower quality products for economic gain is increasing. For some time, stable isotopes have been employed as a tool of choice to determine origin and farming methods of agricultural and animal products. The Ministry for Primary industries (MPI) commissioned GNS Science to investigate a selection of New Zealand and overseas sourced butter to understand key differences...
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