June 1, 2010 Thesis Open Access

Eshetu Legesse

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    <subfield code="a">Aflatoxin Content of Peanut (Arachis hypogaea) in Relation to Shelling and Storage Practices of Ethiopian Farmers</subfield>
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    <subfield code="a">&lt;p&gt;The threat of aflatoxin contamination in food commodities and its association with health risks&lt;br&gt;
in both animals and humans continues to raise increasing concern over years. In this research, A.&lt;br&gt;
flavus species found in association with peanuts in storage and their potential to produce&lt;br&gt;
aflatoxin in collected samples was determined. About 11 to 87% of collected peanut samples&lt;br&gt;
were infected with various moulds including Rhizopus sp., Fusarium sp., Aspergilus flavus, A.&lt;br&gt;
niger, other Aspergillus sp., Penicillium sp., and other undefined sp.&lt;br&gt;
Aspergillus flavus is known to be the most patent aflatoxigenic strains infects 80.69 % of the&lt;br&gt;
total samples analyzed. Eighty five percent of the tested isolates of A. flavus were capable for&lt;br&gt;
the production of aflatoxins.&lt;br&gt;
From the total of 52 peanut (Arachis hypogaea) samples analyzed, 38 (73.06 %) were positive&lt;br&gt;
for aflatoxin. The average levels of aflatoxins detected in the seed samples were between&lt;br&gt;
0.57(from Babile new harvest sample) to 447.02 ppb (from Babile three month stored in pp bag).&lt;br&gt;
The higher level of toxicity is more than twenty times greater than the acceptable dosage (20&lt;br&gt;
ppb: US Standards) in peanuts of three month stored after wet shelling. This research pointed out&lt;br&gt;
that the storage and shelling practice of farmers have effects in aflatoxin contamination in peanut&lt;br&gt;
despite enormous efforts to control this mycotoxin&amp;nbsp;&lt;/p&gt;</subfield>
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