Department of Physics and Earth Sciences, University of Ferrara, 44122 Ferrara, Italy.
Institute of Environmental Geology and Geoengineering of the Italian National Research Council (CNR-IGAG), 00015 Montelibretti, Italy.
Molecules. 2021 Mar 25;26(7):1859. doi: 10.3390/molecules26071859.
In the Adriatic lagoons of northern Italy, manila clam () farming provides important socio-economic returns and local clams should be registered with the Protected Designations of Origin scheme. Therefore, there is a need for the development of rapid, cost-effective tests to guarantee the origin of the product and to prevent potential fraud. In this work, an elemental analysis (EA) coupled with isotope ratio mass spectrometry (IRMS) was employed to identify the isotopic fingerprints of clams directly collected onsite in three Adriatic lagoons and bought at a local supermarket, where they exhibited certification. In particular, a multivariate analysis of C/N, δC and δN in manila clam tissues as well as δC in shells and ΔC (calculated as δC-δC) seems a promising approach for tracking the geographical origin of manila clams at the regional scale.
在意大利北部的亚得里亚海泻湖，养殖蛤仔（）带来了重要的社会经济效益，当地蛤仔应该在受保护的原产地计划中注册。因此，需要开发快速、经济高效的测试方法来保证产品的原产地，并防止潜在的欺诈行为。在这项工作中，元素分析（EA）与同位素比质谱（IRMS）相结合，用于直接识别在三个亚得里亚海泻湖中采集的和在当地超市购买的认证蛤仔的同位素指纹。特别是，对蛤仔组织中的 C/N、δC 和 δN 以及贝壳中的 δC 和 ΔC（计算为 δC-δC）的多元分析，似乎是在区域尺度上追踪蛤仔地理起源的一种很有前途的方法。
