Luciano Molognoni1,2, Luciano Vitali3, Leandro As Ploêncio1,3, Jacson N Santos1,4, Heitor Daguer1,4. 1. Ministério da Agricultura, Pecuária e Abastecimento, Laboratório Nacional Agropecuário, Serviço Laboratorial Avançado, São José, SC, 88102-600, Brazil. 2. Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Departamento de Ciência e Tecnologia de Alimentos, Florianópolis, SC, 88034-000, Brazil. 3. Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Departamento de Química, Florianópolis, SC, 88040-900, Brazil. 4. Instituto Federal de Educação, Ciência e Tecnologia de Santa Catarina, Câmpus São José, São José, SC, 88103-310, Brazil.
Abstract
BACKGROUND: Pangasius is a fish produced on a large scale in Vietnam and exported to many countries. Since river contamination from human activities can affect the safety of this food, fish consumption can cause exposure to potentially toxic elements for humans. The aim of this study, therefore, was to assess arsenic, cadmium, lead, copper and chromium contents by atomic absorption spectrometry in Pangasius fillet produced in the provinces of Dong Thap and Can Tho (Vietnam) and exported to Brazil. RESULTS: The limits of detection were: arsenic 0.5443 µg kg(-1) , cadmium 0.0040 mg kg(-1) , chromium 0.0004 mg kg(-1) , copper 0.0037 mg kg(-1) and lead 0.0284 mg kg(-1) . Analysis of 20 samples showed results below the limit of detection for arsenic, chromium and lead, while copper average concentration was 0.0234 mg kg(-1) . Cadmium average concentration was 0.0547 mg kg(-1) , with no significant difference between the two regions studied. CONCLUSION: The samples of Pangasius had no detectable concentrations of arsenic, chromium, copper and lead, and do not represent a hazard to public health. However, cadmium analysis revealed non-compliant samples, demonstrating the importance of monitoring the quality of imported Pangasius fish.
BACKGROUND: Pangasius is a fish produced on a large scale in Vietnam and exported to many countries. Since river contamination from human activities can affect the safety of this food, fish consumption can cause exposure to potentially toxic elements for humans. The aim of this study, therefore, was to assess arsenic, cadmium, lead, copper and chromium contents by atomic absorption spectrometry in Pangasius fillet produced in the provinces of Dong Thap and Can Tho (Vietnam) and exported to Brazil. RESULTS: The limits of detection were: arsenic 0.5443 µg kg(-1) , cadmium 0.0040 mg kg(-1) , chromium 0.0004 mg kg(-1) , copper 0.0037 mg kg(-1) and lead 0.0284 mg kg(-1) . Analysis of 20 samples showed results below the limit of detection for arsenic, chromium and lead, while copper average concentration was 0.0234 mg kg(-1) . Cadmium average concentration was 0.0547 mg kg(-1) , with no significant difference between the two regions studied. CONCLUSION: The samples of Pangasius had no detectable concentrations of arsenic, chromium, copper and lead, and do not represent a hazard to public health. However, cadmium analysis revealed non-compliant samples, demonstrating the importance of monitoring the quality of imported Pangasius fish.
Authors: Sonia Collado-López; Larissa Betanzos-Robledo; Martha María Téllez-Rojo; Héctor Lamadrid-Figueroa; Moisés Reyes; Camilo Ríos; Alejandra Cantoral Journal: Int J Environ Res Public Health Date: 2022-07-16 Impact factor: 4.614