Preliminary study in the provenance establishment of cocoa and chocolate

Wan Ling Ng

    Research output: ThesisMaster's Thesis

    473 Downloads (Pure)


    Concentrations of 50 elements were determined in 43 single source chocolates and 32 cocoa beans samples from 14 countries using inductively coupled plasma mass spectrometry and emission spectroscopy. Linear discriminant analysis of the data illustrated potential in distinguishing geographical origins of chocolates and cocoa beans to their regions of origin. Higher percentage of correctly classified samples through cross validation showed that provenance establishment for cocoa beans based on their elemental profile is more effective than that for chocolates.
    Statistical analysis of laser ablation inductively coupled plasma mass spectrometry qualitative data was generally consistent with that observed from solution based ICP-­methods.
    Original languageEnglish
    Awarding Institution
    • The University of Western Australia
    • Franklin, Daniel, Supervisor
    • Watling, John, Supervisor
    Award date4 Oct 2016
    Publication statusUnpublished - 2016


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