Evaluation of As, Se and Zn in octopus samples in different points of sales of the distribution chain in Brazil
2014
Shellfish such as squid and octopus, class Cephalopoda, has high commercial value in restaurants and for export. As, Se and Zn concentrations were determined in 117 octopus acquired in different points of the distribution chain in 4 coastal cities of Sao Paulo state (Guaruja, Santos, Sao Vicente and Praia Grande)—Brazil. The methodology for elemental determination was Instrumental Neutron Activation Analysis (INAA). The element concentration in the octopus samples (wet weight) range from: 0.184 to 35.4 mg kg−1 for As, 0.203 to 2.26 mg kg−1 for Se and 4.73 to 37.4 mg kg−1 for Zn. Arsenic and Se levels were above the limit for fish established by Brazilian legislation, while Zn concentrations were in accordance with literature values.
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