Combined use of stable isotope analysis and elemental profiling to determine provenance of black tiger prawns (Penaeus monodon)
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Date
2019-01-01
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
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. Crown Copyright © 2018 Published by Elsevier Ltd.
Description
Keywords
Seafood, Prawns, Aquaculture, Stable isotopes, X-ray fluorescence analysis, Asia
Citation
Gopi, K., Mazumder, D., Sammut, J., Saintilan, N., Crawford, J., & Gadd, P. (2019). Combined use of stable isotope analysis and elemental profiling to determine provenance of black tiger prawns (Penaeus monodon). Food Control, 95, 242-248. doi:10.1016/j.foodcont.2018.08.012