PESQUISA MICOTOXICOLóGICA DE PRODUTOS AVíCOLAS ?IN NATURA? E PROCESSADOS

摘要

The occurrence of aflatoxins and ochratoxin A in carcasses, edible viscera and poultry processed products purchased from different industries of various Brazilian regions was evaluated. Different types of products were collected in a trimester period being nine of them ?in nature? and eight processed, for extraction of mycotoxins and quantified through the immunoenzymatic assay (ELISA). Samples with positive results for ELISA were analyzed using thin layer chromatography (TLC). From the total analyzed samples 12% resulted positive, being 10.8% for total aflatoxins, and 1.2% for ochratoxin A. The results obtained by TLC showed aflatoxins contamination (B1, B2, G1 and G2) inferior to 5μg/kg. The immunoenzymatic assay was more effective for ?in nature? products, and the second trimester (July - September) was the period when it was isolated the highest quantity of aflatoxins and ochratoxin A. The occurrence of total aflatoxins was more evident in the poultry industries from different regions of the state of Pernambuco, and ochratoxin A from industries in the South and Southeast regions of Brazil.