Lead and cadmium in mangrove root crab (Goniopsis cruentata), in natura and at food processing stages

Abstract

Lead (Pb) and cadmium (Cd) were determined in mangrove root crab (Goniopsis cruentata) tissues (in natura) and in two culinary preparations by graphite furnace atomic absorption spectrometry. Mangrove root crab samples from three sampling sites along the Jaguaripe River, Bahia, Brazil, where lead-glazed ceramics are produced, and from two commercial preparations were collected or purchased in March and April 2016. Cd levels in raw and processed samples were below the methods' limits of detection (0.016 mg kg), while Pb levels in the raw tissues were determined only in the gills (0.67 mg kg) and in the hepatopancreas (0.14 mg kg). However, Pb levels increased from 0.05 to 2.84 mg kg in boiled/sorted muscle and in the traditional stew (with a 57-fold increase), respectively. Pb levels augmented significantly in the processed food due to migration of Pb used in the glazing of cooking ceramic utensils, surpassing the Brazilian and international safety limits.

Zinc‐protoporphyrin determination by HPLC with fluorescence detection as a biomarker of lead effect in artisanal pottery workers

“…This community is regarded as the largest artisanal pottery pole in Brazil, with a population of about 3,000 inhabitants, most of them involved with pottery production in about 200 pottery workshops. According to Costa, Bah, Bandeira, Oliveira, and Menezes‐Filho (2017), metallic Pb is obtained from car batteries, melted on a bonfire and transformed into lead oxide (PbO) after approximately 2 h of continuous mixing. Then, it is mixed with liquefied clay and applied to the interior of ceramic utensils, then burnt again to provide glazing.…”

Cadmium in pork and poultry liver in southern Poland

“…Secondary goal was to examine possible differences in the content of cadmium between pork and poultry livers. The analytical method used (graphite-furnace atomic absorption spectrometry) has been widely applied for determination of cadmium in variety of samples [7][8][9][10].…”