Aflatoxigenic fungi and aflatoxins occurrence in sultanas and dried figs commercialized in Brazil

The presence of aflatoxins, Aspergillus flavus and Aspergillus parasiticus in dried fruits was investigated. A total of 62 dried fruit samples were analyzed (24 black sultanas, 19 white sultanas and 19 dried figs). A total of 10 A. flavus isolates were found, nine in one white
sultana sample (corresponding to 18% infection) and one isolate in dried figs (2%), and all of them were aflatoxin B1 and B2 producers.
A. parasiticus was not found. Aflatoxins were detected in 3 of 19 (16%) white sultana samples analyzed and, the limits were not higher
than 2.0 (Mu)g/kg. In dried figs 11 of 19 (58%) samples were contaminated with aflatoxins and, with exception of one sample that was
contaminated with 1500 (Mu)g/kg of B1 aXatoxin, the others had less than 2.0 (Mu)g/kg. Neither aflatoxigenic or aflatoxins contaminated black
sultanas.
2006 Elsevier Ltd. All rights reserved.
Keywords: Aflatoxin; Dried fruits; Aspergillus flavus