Effect of plant essential oils and gamma irradiation on growth and aflatoxin production by aspergillus flavus isolated from wheat grains

الملخص EN

The antifungal potential of essential oils of Thyme (Thymus vulgaris L.) and camphor (Eucalyptus rostrata L.) was determined on Aspergillus flavus link isolated from wheat grains on Potato dextrose agar (PDA).

They inhibited completely mycelial growth of the fungus at 1000 and 2000 ppm, and prevented aflatoxin production at sublethal dose 500 and 1000 ppm respectively.

Gamma radiation was used to control mycelial growth of Asperillus flavus Link and inhibiting aflatoxin production.

A dose level of 3.5 KGy gamma radiation prevented the fungal growth and aflatoxin production by A.

flavus link, where a dose of 2.5 KGy (the sub lethal dose ) prevented about 85% of aflatoxin production