[Aflatoxin M1 - isolation of a toxin-producing strain of the mold Aspergillus flavus]. / Aflatoxin M1 - záchyt produkcního kmene plísne Aspergillus flavus.

ABSTRACT

A strain of Aspergillus flavus producing aflatoxins B1, G1 and M1 was obtained. Aflatoxin M1 constitutes about 5% of the total amount of aflatoxins produced. Aflatoxin M1 was isolated from a crude chloroform extract and was identified by thin silica-gel layer chromatography (TLC), by high-performance liquid chromatography (HPLC) and spectral analysis.