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As the demand for seafood increases, so does the incidence of seafood fraud. Confirming provenance of seafood is important to combat fraudulent labelling but requires a database that contains the isotopic and elemental "fingerprints" of authentic seafood samples. Local isotopic and elemental databases can be scaled up or combined with other databases to increase the spatial and species coverage to create a larger database. This study showcases the use of isotopic and elemental fingerprints of the black tiger prawn () to develop a database that can be used to securely store the data necessary for determining provenance. The utility of this database was tested through querying and building seven different datasets that were used to develop models to determine the provenance of . The models built using the data retrieved from the database demonstrated that the provenance of could be determined with >80% accuracy. As the database was developed using MySQL, it can be scaled up to include additional regions, species, or methodologies depending on the needs of the users. Combining the database with methods of determining provenance will provide regulatory bodies and the seafood industry with another provenance tool to combat fraudulent seafood labelling.
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http://dx.doi.org/10.3390/foods12142677 | DOI Listing |
Natl Sci Rev
September 2025
Department of Earth Sciences, Durham University, Durham DH1 3LE, UK.
Rhenium and osmium are both siderophilic and chalcophilic, exhibiting a strong affinity for organic-rich materials. This makes the Re-Os chronometer a valuable complement to geochronometers based on lithophile elements. In this review, we begin by discussing how the elemental abundances and isotopic compositions impact sample selection, analytical strategy, and data interpretation.
View Article and Find Full Text PDFF1000Res
September 2025
Department of Biotechnology, Faculty of Life and Allied Health Sciences, M.S. Ramaiah University of Applied Sciences, Bengaluru, Karnataka, 560054, India.
Background: Chintamani village, Chikkaballapura district, Karnataka, India was found to possess high aquifer uranium concentrations. Geologically, Chintamani village is located on bedrock that is rich in elements like potassium (K) that naturally contain high levels of radioactive elements, such as uranium and thorium, due to the presence of alkali-feldspar granites and gneisses. Aquifer depletion has caused the concentration of these elements in groundwater to increase over time, posing a potential health hazard to the residents of Chintamani village.
View Article and Find Full Text PDFJ Hazard Mater
September 2025
Institute of Pollution Control and Environmental Health, and School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China. Electronic address:
This study presents the first experimental evidence of biochar (BC) aerosol generation via raindrop impact on amended soils, combining controlled rainfall simulations with year-long field monitoring of atmospheric particulates from a BC-treated plot (2.0 wt%). Microscopic and isotopic analyses confirmed BC incorporation in total suspended particles (TSP), accounting for 15.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706.
Redox-sensitive elements figure prominently in studies of the evolution of Earth's surface redox state, including the first major rise in atmospheric O, the Paleoproterozoic Great Oxidation Event. Most Precambrian rocks endured multistage tectonothermal histories, however, adding ambiguity to interpretation of their chemistry. Here, we apply U-Th-Pb isotope geochronology to the highly oxidized ~2.
View Article and Find Full Text PDFAnal Chem
August 2025
Laboratory for Disease Glycoproteomics, College of Life Sciences, Northwest University, Xi'an 710069, P. R. China.
Accurate assignment of monoisotopic peaks plays a crucial role in mass spectrometry-based glycoproteomics, as inaccurate assignment can severely impair both the quantity and credibility of glycopeptide identifications. In this work, we introduce a method that utilizes a partial match between the observed isotopic cluster (ObIC) and the average isotopic cluster (AvgIC) to enable precise monoisotopic peak assignment for intact -glycopeptide identification, MAP-Match (onoisotopic ssignment using artial ). The key aspects of MAP-Match are (1) generation of the AvgIC using the "average elemental composition per Da" data from the Byonic glycan database and (2) stepwise partial matching of the ObIC and AvgIC based on the deviation of their mass centroids to determine which section of the AvgIC matches most closely to the ObIC, thereby deducing the true monoisotopic peak.
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