Mycotoxigenic fungi contamination of grains and peanuts from open markets in Kelantan, Malaysia
2022
Anua, S.M. | Salisu, B. | W. R. Wan Ishak | N. Mazlan
The warm weather and high relative humidity in Malaysia are ideal for the survival and proliferation of mycotoxigenic fungi leading to a high rate of stored product contamination. This study was conducted to enumerate and characterise the mycotoxigenic fungi associated with commonly consumed food grains in Kelantan, Malaysia. The fungal bioburden and fungal identification from forty-four composite food samples comprising 11 samples each of maize, wheat, rice, and peanuts from open markets in Kelantan, Malaysia, were determined using standard mycological techniques. A total of 115 mould fungal isolates belonging to 12 species were isolated, of which Aspergillus flavus (17.39%), A. versicolor (13.04%), A. felis (12.17%), Neoscytalidium dimidiatum (11.3%), Penicillium cheresanum (11.3%) and P. chrysogenum (8.7%), were predominant. Peanuts were the most contaminated (9.7×10⁵ ± 1.5×10⁵ CFU/g) followed by maize (7.5×10⁵ ± 1.8×10⁶ CFU/g), wheat (1.9×10⁵ ± 2.6×10⁵ CFU/g), and rice (9.9×10⁴ ± 1.5×10⁵ CFU/g). The levels of the mycotoxigenic fungi in peanut, maize, and wheat were above the permissible limit of 102 CFU/g set by the Malaysian Ministry of Health and 10² to 10⁵ CFU/g set by the International Commission for Microbiological Specification for Foods, signifying that they are unsafe for use as food or feed ingredients. Hence, there is a need for more stringent control measures.
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