摘要
Panga (Pangasius hypophthalmus), originating from Vietnam, is one of the most consumed fish because of its low cost, mild taste and presentation (fillets without skin and bones). Nevertheless, due to the high levels of contamination of the rivers where it lives, and to the fact that the panga is a predator, whereby it will accumulate a higher mercury concentration, the main objectives of the present study were to evaluate the toxic risk from mercury ingestion as a result of the consumption of this fish. A total of 80 frozen panga samples natural and marinade from different commercial establishments have been analyzed using cold vapour atomic absorption spectrophotometry (CV-AAS). The results obtained show a wide range of mercury concentrations between 0.10 and 0.69 mg/kg, with an average value of 0.22 mg/kg. In addition, it has been found that the average mercury concentration in the marinated presentation (0.18 mg/kg) is higher than that obtained in the natural panga (0.16 mg/kg). However, no significant differences were found between commercial establishments or in the presentation formats, with the conclusion that they did not influence the mercury content in the samples. Assuming a weekly consumption of 350 g of panga, the contribution rate to Tolerable Weekly Intake (TWI) of mercury (4 μg/kg bw/week) is 32% and 27.5% for women and men, respectively. Based on the results obtained in this study, an exhaustive control of the mercury content in this type of fish is necessary. In addition, a consumption restriction to children will be established.
摘要译文
Panga（Pangasius hypophthalmus）源自越南，因其成本低，味道温和，呈现（没有皮肤和骨头的鱼片）而成为消费量最高的鱼类之一。尽管如此，由于其生活的河流污染程度很高，并且由于Panga是一种捕食者，因此它会积累更高的汞浓度，本研究的主要目标是评估由于食用这种鱼而引起的汞摄入的毒性风险。使用冷原子吸收分光光度法（CV-AAS）分析了来自不同商业机构的总共80个天然和腌泡汁样品。所获得的结果显示，汞浓度范围很广，介于0.10和0.69mg / kg之间，平均值为0.22mg / kg。此外，已发现腌制过的介质中的平均汞浓度（0.18mg / kg）高于天然panga中的平均汞浓度（0.16mg / kg）。然而，商业机构或报告格式之间没有发现显着差异，得出的结论是它们不影响样本中的汞含量。假设每周消耗350g的panga，对于女性和男性，对每周可摄入量（TWI）汞（4μg/ kgbw /周）的贡献率分别为32％和27.5％。根据本研究获得的结果，对这种鱼的汞含量进行彻底控制是必要的。此外，将建立对儿童的消费限制。
MaríaRodríguez[a];ángel J.Gutiérrez[a];NatividadRodríguez[a];CarmenRubio[a];SorayaPaz[a];VerónicaMartín[b];ConsueloRevert[c];ArturoHardisson[a];. Assessment of mercury content in Panga (Pangasius hypophthalmus)[J]. Chemosphere, 2018,196: 53-57