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SESSION 2: SECONDARY METABOLITES – BIOCHEMISTRY,
BIOSYNTHESIS, FEED AND FOOD SAFETY
P23 - Co-occurrence of mycoflora, aflatoxins and
fumonisins in maize and rice seeds from markets of
different districts in Cairo, Egypt
A. K. Madbouly 1-2 , M. I. M. Ibrahim 3 , A. F. Sehab 4 , M. A. Abdel-Wahhab 3
1 Faculty of Science, Microbiology Department, Ain Shams University, Abbassia, Cairo, Egypt; 2 Faculty
of Science, Biology Department, Tabuk University, Tabuk, Saudi Arabia; 3 Food Toxicology &
Contaminants Department, National Research Center, Dokki, Cairo, Egypt; 4 Plant Pathology
Department, National Research Center, Dokki, Cairo, Egypt
E-mail: adelmadbouly@yahoo.com
The mycoflora and mycotoxins contamination of commercial maize and rice
grains collected from local markets of the major five zones of the province of
Cairo, Egypt, represented by 20 different districts were studied. A total number of
about 23 species belonging to 12 different genera of fungi were isolated and
identified. About 70% of the samples were infected with Aspergillus flavus and
Aspergillus niger, with percentages of 33%, 40% recovered from maize and 46%,
27% recovered from rice, respectively. The percentages of infection of maize
ranged from 16% to 142%. The percentages of infection of rice seeds ranged
from 6% to 93%. Total aflatoxins and fumonisins detected in maize averaged 9.75
and 33 mg/kg, respectively. Total aflatoxins and fumonisins detected in rice
averaged 5.15 and 1014 mg/kg, respectively.
Keywords: fumonisins, aflatoxins, Fusarium mycotoxins, mycoflora
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