Tracking the provenance of octopus using isotopic and multi-elemental analysis

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dc.contributor.authorMartino, JCen_AU
dc.contributor.authorMazumder, Den_AU
dc.contributor.authorGadd, PSen_AU
dc.contributor.authorDoubleday, ZAen_AU
dc.date.accessioned2021-10-18T04:55:40Zen_AU
dc.date.available2021-10-18T04:55:40Zen_AU
dc.date.issued2021-09-15en_AU
dc.date.statistics2021-09-30en_AU
dc.descriptionThis is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form.en_AU
dc.description.abstractOctopus are an increasingly important seafood commodity, yet traceability techniques to validate the origins of octopus products are sorely lacking. For the first time, we investigate whether chemical profiling can identify geographical origins of octopus on international and domestic scales. Our samples consisted of wild-caught octopus from south-east Asia and southern Australia, regions with high seafood trade. We used a novel combination of stable carbon (δ13C) and oxygen (δ18O) isotope analyses (Isotope-Ratio Mass Spectrometry) of internal calcified structures called statoliths, with elemental analyses (X-Ray Fluorescence using Itrax) of muscle tissue. We found that multivariate profiles had distinctive regional signatures, even across species, with high classification success (∼95%) back to region of origin. This study validates isotopic and multi-elemental profiling as an effective provenance tool for octopus, which could be used to support transparency and accountability of seafood supply chains and thus encourage sustainable use of ocean resources. © 2021 Elsevier Ltd.en_AU
dc.identifier.articlenumber131133en_AU
dc.identifier.citationMartino, J. C., Mazumder, D., Gadd, P., & Doubleday, Z. A. (2021). Tracking the provenance of octopus using isotopic and multi-elemental analysis. Food Chemistry, 371, 131133. doi.org/10.1016/j.foodchem.2021.131133en_AU
dc.identifier.issn0308-8146en_AU
dc.identifier.journaltitleFood Chemistryen_AU
dc.identifier.urihttps://doi.org/10.1016/j.foodchem.2021.131133en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12000en_AU
dc.identifier.volume371en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectSeafooden_AU
dc.subjectSustainabilityen_AU
dc.subjectTracer techniquesen_AU
dc.subjectIsotope ratioen_AU
dc.subjectMulti-element analysisen_AU
dc.subjectCarbon 13en_AU
dc.subjectOxygen 18en_AU
dc.titleTracking the provenance of octopus using isotopic and multi-elemental analysisen_AU
dc.typeJournal Articleen_AU
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