EFFECTS OF GAMMA·IRRADIATION AND CHEMICAL COMPOSITION OF SOME CROP SEEDS ON AFLATOXIN 81 PRODUCTION BY Aspergillus ffavus.

Document Type : Original Article

Authors

National Center for Radiation Research a nd Technology, P.O. Box 29 Nasr City, Cairo, Egypt.

Abstract

The effects 0 f gamma-irradiation 0 n chemical composition 0 f some different
crop seeds, fungal infection a nd aflatoxin 81 production by Aspergillus flavus were
investigated. Asp < /em>ergillus flavus infected seeds behaved differently according to their
principal constituents. Aspergillus flavus caused an increase in protein and a
decrease in lipids and carbohydrate contents of wheat, soyabean and fababean
seeds. Growth of Aspergillus flavus and production of aflatoxin 81 was inhibited at a
dose level of 5 kGy.
Aspergillus flavus utilized carbohydrates of the seeds for its growth and
aflatoxin production. Crops were arranged, in a descending order according to
aflatoxin produced in seeds as, wheat > soyabean > fababean. There were no
changes in chemical constituents of irradiated seeds, such as protein, lipids, and
carbohydrates.

Keywords

Journal of Soil Sciences and Agricultural Engineering
Volume 28, Issue 1
January 2003
Pages 649-661

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