Combined use of stable isotope analysis and elemental profiling to determine provenance of black tiger prawns (Penaeus monodon)

Karthik Gopi, Debashish Mazumder*, Jesmond Sammut, Neil Saintilan, Jagoda Crawford, Patricia Gadd

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    Global demand for seafood is rising, with a commensurate increase in supply from farmed and wild-caught products. Determining seafood provenance is important to reduce food fraud, and food safety and biosecurity risks. DNA and fatty acid profiling cannot independently distinguish between farmed, wild-caught and geographic origins of seafood. This study applied stable isotope analysis (SIA) and X-ray fluorescence (XRF), using Itrax, to test their effectiveness as tools to distinguish the origin and production methods of black tiger prawns (Penaeus monodon) from a range of Asia-Pacific locations. Isotopic and elemental data (31 elements) were analysed using multivariate methods, linear discriminant analysis (LDA), and randomForest. LDA and randomForest had consistent results: XRF effectively distinguished the production method and geographic origin of P. monodon (up to 100% accuracy), while SIA had a lower accuracy (up to 95% accuracy). However, SIA and XRF are effective complementary methods for determining provenance of black tiger prawns.

    Original languageEnglish
    Pages (from-to)242-248
    Number of pages7
    JournalFood Control
    Volume95
    DOIs
    Publication statusPublished - Jan 2019

    Keywords

    • Seafood
    • Provenance
    • Aquaculture
    • Elemental profiling
    • Stable isotopes
    • Black tiger prawns

    Fingerprint

    Dive into the research topics of 'Combined use of stable isotope analysis and elemental profiling to determine provenance of black tiger prawns (Penaeus monodon)'. Together they form a unique fingerprint.

    Cite this