Incidence of aflatoxins and Aspergillus flavus in peanuts consumed in Maringá city, Brazil

It is know that the presence of Aspergillus flavus in stored grains indicates the possibility of aflatoxin contamination. In the present work the occurrence of aflatoxins and aflatoxigenic fungi in peanut samples collected in Maringága city was analysed. Of the 72 samples studied, 48.6 per cent were found positive. Aflatoxin B1, B2, G1, and G2 had maximal levels about 679, 192, 680 and 320 ppb. respectively by fungi of A.flavus group and evaluation in 83.3 per cent of them showed that all of the isolated strains had the capacity to produce aflatoxin B1