Mycobiota associated with baby food products imported into Uganda with special reference to aflatoxigenic aspergilli and aflatoxins
2008
Ismail, M.A.,Makerere Univ., Kampala (Uganda). Dept. of Botany | Taligoola, H.K.,Makerere Univ., Kampala (Uganda). Dept. of Botany | Nakamya, R.,Makerere Univ., Kampala (Uganda). Dept. of Botany
Five baby food products imported into Uganda were collected from different shops and investigated for contamination by fungi and aflatoxins. Forty-two species belonging to 21 genera in addition to some unidentified fungi were recovered on dichloran rose bengal chloramphenicol agar. Cornflakes followed by Cerelac were the most heavily contaminated products while Heinz mixed cereal was the least. Cladosporium sphaerospermum, Fusarium tricinctum and Penicillium oxalicum were the most predominant fungi. On the other hand, using Aspergillus flavus/parasiticus agar, 34% of the samples were positive for aflatoxigenic aspergilli. Aflatoxigenic aspergilli constituted 78.8% of all aspergilli and 4.9% of all contaminating fungi. Samples from all products were contaminated with aflatoxigenic aspergilli, but samples of Cerelac were the most, while those of Porridge oats were the least. Aflatoxin analysis of food samples revealed that 9 out of 13 analysed samples were contaminated with aflatoxins in the range of 1-10 ppb (6 samples) and 11-20 ppb (3 samples). Only samples of Cerelac were aflatoxin-free, although aflatoxigenic aspergilli were detected in some samples. It was noted that samples of Cerelac had the least moisture content compared to the other products.
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