Pappalardo Anna Maria, Copat Chiara, Ferrito Venera, Grasso Alfina, Ferrante Margherita
Department of Biological, Geological and Environmental Sciences, University of Catania, I-95124 Catania, Italy.
Department of Medical, Surgical Sciences and Advanced Technologies 'G.F. Ingrassia', Hygiene and Public Health, University of Catania, I-95123 Catania, Italy.
Mol Med Rep. 2017 May;15(5):3430-3437. doi: 10.3892/mmr.2017.6376. Epub 2017 Mar 24.
Canned tuna in olive oil and in brine of the most popular brands sold in Italian markets were analyzed to verify the authentication of transformed products, with the aim to unveil commercial frauds due to the substitutions of high value species with species of low commercial value, and to assess the health risk of consumers related to cadmium (Cd), lead (Pb) and mercury (Hg) contents. Species authentication was evaluated with amplification of COI DNA barcode and confirmed the declared species. Among tested metals, Hg had the highest concentrations, followed by Cd and Pb. None of the tested samples surpassed the European regulatory limits no. 1881/2006 fixed for Hg and Pb, whereas one batch of canned tuna in olive oil exceeded standard for Cd. Risk for human health was evaluated by the metals daily intake and target hazard quotient (THQ). As a result, Cd and Pb did not exceed the toxicological reference values established by World Health Organization (WHO) and the Environmental Protection Agency (EPA). Conversely, Hg content suggests a consumption no more than once a week and a continuous surveillance of this fishery products for consumer protection.
对意大利市场上销售的最受欢迎品牌的橄榄油罐头金枪鱼和盐水罐头金枪鱼进行了分析，以核实转基因产品的真实性，目的是揭露用低商业价值物种替代高价值物种的商业欺诈行为，并评估消费者与镉（Cd）、铅（Pb）和汞（Hg）含量相关的健康风险。通过扩增COI DNA条形码评估物种鉴定，并确认了所宣称的物种。在所测试的金属中，汞的浓度最高，其次是镉和铅。没有一个测试样品超过欧洲第1881/2006号法规对汞和铅规定的限量，而一批橄榄油罐头金枪鱼的镉含量超过了标准。通过金属每日摄入量和目标危害商数（THQ）评估对人类健康的风险。结果，镉和铅未超过世界卫生组织（WHO）和环境保护局（EPA）确定的毒理学参考值。相反，汞含量表明每周食用次数不应超过一次，并且为保护消费者应对此类渔业产品进行持续监测。
