الفهرس 
INTRODUCTION AND AIM OF THE WORKOnly 14 pages are availabe for public view
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Abstract
The present study aimed to monitoring and planning of such pollutants (detect the concentrations of heavy metals and aflatoxins) in different varieties of foods from different regions of Damietta Governorate. Corn (40 sample), peanut (40 sample), milk, white and hard cheese (30 sample) were collected through the study period which started from July 2010 to June 2011. Five sampling regions were selected for the present study from Damietta Governorate. These regions were (EL Zarka, Faraskour, Kafr Saad, Damietta City and New Damietta City).
Assessment of the results which was carried out during the study period indicated that:
1. Isolation and identification of fungi from the collected food samples, (a total of 241 fungi isolates were isolated from 40 corn sample, while A total of 306 fungi isolates were isolated from 40 peanut samples. Among the detected fungi in milk samples, Aspergillus group was the most prevalent fungi in all examined samples.
2. Detection of aflatoxins production of isolated fungi. it was clear that an isolate of Aspergillus flavus that was isolated from corn samples had the ability to produce AFs, Aspergillus flavus strain isolated from peanut samples produced AFB1, AFB2, AFG1 and AFG2, Aspergillus flavus isolated from the hard cheese samples was found to produce AFB1, AFB2, AFG1 and AFG2.
3. Determination of aflatoxins levels (B1, B2, G1, G2 and M1). in the collected samples. There are aflatoxins levels in all food samples below permissible limits except milk samples.
4. Treating the aflatoxins positive food samples by some processing methods to reduce aflatoxins levels, treating corn samples by H2O2 reduced aflatoxins levels by percent more than HCl. The percentage reduction of AFB1, AFB2, AFG1 and AFG2 were 84.3, 87.9, 88.3 and 85.1%, respectively, with roasting at 290°C for 30 minutes.
5. Six heavy metals (Pb, Zn, Mn, Cu, Fe and Cd) were investigated in the present study, it was obvious that Cd and Pb concentrations in milk samples were above international permissible limits. Therefore, more emphasis should be given to the routine AFM1 inspection in milk and dairy products. In addition, governmental agencies need to inform both farmers and dairy companies about the importance of aflatoxins determination, and the consequences of AFM1 presence in their products.