Cost-efficiency improvement of bivalves shells preparation when tracing their geographic origin through ICP-MS analysis of elemental fingerprints. (December 2020)

• Record Type: Journal Article
• Authors: Ricardo, Fernando; Mamede, Renato; Bispo, Regina; Santos, Andreia; Ferreira da Silva, Eduardo; Patinha, Carla; Calado, Ricardo
• Is Part Of: Food control. Volume 118(2020)
• Publication Date: 2020-12
• Subjects: Traceability -- Seafood -- TEF -- Ruditapes philippinarum; 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.2020.107383
• Languages: English
• ISSNs: 0956-7135

Abstract

Abstract: Developing methodologies employed to trace the geographic origin of seafood as accurate and fast as possible can help to speed-up the delivery of results to legal authorities, reduce associated costs and minimize environmental impacts (associated with the residues generated). The present study evaluated if trace element fingerprints (TEF) of a small homogenized subsample of Manila clams ( Ruditapes philippinarum ) right valve yielded a representative elemental signature of the whole shell. Four elemental ratios (Ba/Ca, Mg/Ca, Mn/Ca and Sr/Ca) commonly employed to trace the geographic origin of bivalves were determined from subsamples of 0.2 and 3 g of the homogenized right valve and the whole left valve (4 g). A Canonical Analysis of Principal Coordinates developed for the subsamples of small portions (0.2 g) of the homogenized right valve revealed an accuracy of 100%, that led to the correct classification of the subsample of 3 g to their respective valve and that of 4 g to its matching shell. Results achieved indicate that TEF of a small homogenized portion of a bivalves valve is representative of the whole shell and can be employed to provide an accurate, fast, reliable and environmentally safer method to trace its geographic origin. Highlights: Trace element fingerprints can be used to trace the geographic origin of bivalves. A small portion of one valve can be used as a reliable proxy of the whole shell. This approach makes ICP-MS analysis more environmentally friendly. This approach is faster and equally reliable for traceability of geographic origin.