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Mamede R, Patinha C, Martins P, Ferreira da Silva E, Calado R, Ricardo F. Effects of H 2O 2 pretreatment on the elemental fingerprints of bivalve shells and their implications for the traceability of geographic origin. Heliyon 2024; 10:e25872. [PMID: 38434016 PMCID: PMC10906155 DOI: 10.1016/j.heliyon.2024.e25872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
The fraudulent mislabelling of seafood geographic origin has been growing due to complex supply chains and growing consumer demand. To address this issue, seafood traceability tools, such as those based on elemental fingerprints (EF) of bivalve shells, have been successfully used to confirm their harvesting location. However, despite the usefulness of these methodologies, there is still room for optimization. Therefore, this study evaluated the effects of a routine procedure during bivalve shells preparation for ICP-MS analysis - their pretreatment with H2O2 to remove organic components. More specifically, the present study evaluated the effects of H2O2 on i) the elemental fingerprints of shells of two bivalve species (Ruditapes philippinarum and Cerastoderma edule) from four different locations over the north-western and the western Iberian coast, and ii) their influence on the accuracy of models (based on the EF of shells) used to confirm the geographic origin of these species. Significant differences were observed between untreated and pretreated shells of R. philippinarum (p within location ranging from 0.0001 to 0.0011) and C. edule (p ranging from 0.0001 to 0.0007 for C. edule) for both their elemental fingerprints as a whole and several individual elements. The accuracy of the models employed to determine the origin of the two bivalve species, using i) untreated shells, ii) pretreated shells, and iii) both pretreated and untreated shells grouped per location, was high, with the models accurately predicting the geographic origin of 100, 90 and 95% of R. philippinarum and 95, 100 and 95% of C. edule, respectively. These results show that the shifts in the EF of bivalve shells promoted by treating them with H2O2 prior to ICP-MS analysis did not affect the accuracy of the models used to confirm the geographic origin of both bivalve species. Therefore, the need to pre-treat bivalve shells with H2O2 can be dismissed in future studies addressing the traceability of bivalves when using ICP-MS, thus contributing to reducing environmental impacts and economic costs associated with this procedure, as well as the time required to obtain results.
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Affiliation(s)
- Renato Mamede
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Carla Patinha
- GEOBIOTEC, Department of Geosciences, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Patrícia Martins
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Eduardo Ferreira da Silva
- GEOBIOTEC, Department of Geosciences, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Ricardo Calado
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
| | - Fernando Ricardo
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193, Aveiro, Portugal
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Bucur AI, Poienar M, Bucur RA, Mosoarca C, Banica R. Thermally induced nano-texturing of natural materials: Mytilus galloprovincialis, Mya arenaria and Cerastoderma edule exoskeletons. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1007/s43153-022-00297-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Baio JE, Jaye C, Sullivan E, Rasmussen MH, Fischer DA, Gorb S, Weidner T. NEXAFS imaging to characterize the physio-chemical composition of cuticle from African Flower Scarab Eudicella gralli. Nat Commun 2019; 10:4758. [PMID: 31628305 PMCID: PMC6802387 DOI: 10.1038/s41467-019-12616-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 09/18/2019] [Indexed: 11/30/2022] Open
Abstract
The outermost surface of insect cuticle is a high-performance interface that provides wear protection, hydration, camouflage and sensing. The complex and inhomogeneous structure of insect cuticle imposes stringent requirements on approaches to elucidate its molecular structure and surface chemistry. Therefore, a molecular understanding and possible mimicry of the surface of insect cuticle has been a challenge. Conventional optical and electron microscopies as well as biochemical techniques provide information about morphology and chemistry but lack surface specificity. We here show that a near edge X-ray absorption fine structure microscope at the National Synchrotron Light Source can probe the surface chemistry of the curved and inhomogeneous cuticle of the African flower scarab. The analysis shows the distribution of organic and inorganic surface species while also hinting at the presence of aragonite at the dorsal protrusion region of the Eudicella gralli head, in line with its biological function. Biology serves as inspiration in materials development; this requires improved understanding of the surface chemistry responsible for processes which are being mimicked. Here, the authors report on the use of near edge X-ray absorption fine structure (NEXAFS) imaging to analyze the surface chemistry of insect cuticle.
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Affiliation(s)
- Joe E Baio
- School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR, USA
| | - Cherno Jaye
- National Institute of Standards and Technology, Gaithersburg, MD, USA
| | | | | | - Daniel A Fischer
- National Institute of Standards and Technology, Gaithersburg, MD, USA
| | - Stanislav Gorb
- Functional Morphology and Biomechanics, Zoological Institute, Kiel University, 24118, Kiel, Germany
| | - Tobias Weidner
- Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark.
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Organic matrices in metazoan calcium carbonate skeletons: Composition, functions, evolution. J Struct Biol 2016; 196:98-106. [DOI: 10.1016/j.jsb.2016.04.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/04/2016] [Accepted: 04/12/2016] [Indexed: 11/23/2022]
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