Survey on the occurrence of aflatoxins and mould nora in 60 different
corn snack samples showed that all the kody samples were contaminated
with aflatoxins B-1, B-2, G(1) and G(2) at concentrations, ranging fro
m 50 to 100 mu g/ kg. Fifty-one species and 1 variety belonging to 26
genera were isolated from all samples, at 28 degrees C. The predominan
t mesophiles were: Aspergillus flavus, A. fumigatus A. niger on diclor
an rose-Bengal agar. A. niger and A. flavus, Cladosporium sphaerosperm
um Eurotium amstelodami and Penicillium chrysogenum on 15% NaCl-Czapek
's agar. On YpSs agar at 45 degrees C, 9 species belonging to 6 genera
and some yeasts were identified. A fumigatus was the most common spec
ies on all kinds of corn snacks, Papulaspora sp. and A. niger were rec
orded in high frequencies on dracula and kody samples, respectively. Y
easts were isolated in low occurrence from karate, and high occurrence
on the other three kinds of snacks at 45 degrees C.