Aflatoxins and ochratoxinin A in bean from Iran.

A study was undertaken to determine levels of aflatoxins and ochratoxin A in bean, using a technique preceded by an immunoaffinity clean-up step. For this purpose, a total of 30 bean samples were analyzed. 16.67% and 10% of examined bean samples contained Aflatoxin B(1) and ochratoxin A more than 0.2 ng g(-1). Recoveries were found to be 91.1% and 98.5% for Aflatoxin B(1) and ochratoxin A, respectively, while the detection limit was 0.2 ng g(-1) for both mycotoxins.