Comparison of three culture media for the detection of aflatoxin forming strains of Aspergillus flavus in bread.

The suitability of the media of Hara et al. (4) Bothast and Fennell (2) and Reiss (5) for the detection of aflatoxin forming Aspergillus flavus in bread was tested in comparison. The first two media allowed the most precise identification of this mold who was among eight common bread molds the sole producer of aflatoxins (as confirmed by thin-layer chromatography). Because of its simple mode of preparation and handling the "Aspergillus differential medium" (ADM) of Bothast and Fennell (2) is recommended for routine screening tests in bread microbiology.