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Food Chem. 2015 Mar 1;170:241-8. doi: 10.1016/j.foodchem.2014.08.037. Epub 2014 Aug 19.

Stable isotope and trace metal compositions of Australian prawns as a guide to authenticity and wholesomeness.

Author information

1
Queensland Health Forensic and Scientific Service, PO Box 594, Archerfield, QLD 4108, Australia. Electronic address: Jim.Carter@health.qld.gov.au.
2
Queensland Health Forensic and Scientific Service, PO Box 594, Archerfield, QLD 4108, Australia.
3
Griffiths University, Australian Rivers Institute, Kessels Road, Nathan, QLD 4111, Australia.

Abstract

This research has explored the potential of stable isotope and trace metal profiles to distinguish Australian prawns from prawns imported from neighbouring Asian countries. Australian prawns were collected mostly from the Brisbane area. Strong differences in Australian vs. imported prawns were evident from both the isotope and trace element data, with the differences most likely occurring because imported prawns are typically reared in aquaculture facilities and frozen prior to sale in Australia. The aquaculture origins are characterised by comparatively; low δHVSMOW, δ(13)CVPDB values, low concentrations of arsenic, zinc and potassium, and high water contents (>80%). Relatively high arsenic and cadmium contents were found within Australian prawns, but the concentrations did not exceed local human health guidelines.

KEYWORDS:

Authentication; Country of origin; Isotope ratio; Seafood; Stable isotopes; Trace metals

PMID:
25306341
DOI:
10.1016/j.foodchem.2014.08.037
[Indexed for MEDLINE]

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