Combined use of stable isotope analysis and elemental profiling to determine provenance of black tiger prawns (Penaeus monodon). (January 2019)

• Record Type: Journal Article
• Authors: Gopi, Karthik; Mazumder, Debashish; Sammut, Jesmond; Saintilan, Neil; Crawford, Jagoda; Gadd, Patricia
• Is Part Of: Food control. Volume 95(2019)
• Page Start: 242
• Page End: 248
• Publication Date: 2019-01
• Subjects: Seafood -- Provenance -- Aquaculture -- Elemental profiling -- Stable isotopes -- Black tiger prawns; Food -- Quality -- Periodicals; Food -- Analysis -- Periodicals; Food handling -- Periodicals; Food industry and trade -- Quality control -- Periodicals; Aliments -- Industrie et commerce -- Qualité -- Contrôle -- Périodiques; Aliments -- Qualité -- Périodiques; Aliments -- Analyse -- Périodiques; Hygiène alimentaire -- Périodiques; Food -- Analysis; Food handling; Food -- Quality; Periodicals; Electronic journals; 664.07
• DOI: 10.1016/j.foodcont.2018.08.012
• Languages: English
• ISSNs: 0956-7135

Abstract

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. Highlights: The study applied elemental profiling using Itrax to determine seafood provenance. Itrax can determine farmed vs wild-caught and geographic origins of Penaeus monodon. Using all elements detected by Itrax gives the most accurate results. Stable Isotope Analysis has shown promise as a provenance tool.