Aflatoxin B1 Binding Abilities of Probiotic Bacteria

Abstract

The detoxification ability and toxin binding properties (ability and strength) of aflatoxin B1 by six strains of probiotic bacteria were studied. The detoxification ability of the organisms ranged between 20-50%. About 60-80% of the bound aflatoxin was removed when washed with water, and only 10-40% of the toxin was strongly bound to the bacterial cells. Among the organisms studied, Bifidobacterium infantis 1912 demonstrated a significantly higher aflatoxin binding ability than the other strains, while Bifidobacterium pseudolongum 20099 showed the least aflatoxin binding ability of about 10% of the added 50 ng of aflatoxin B1. Bifidobacterium bifidum 1 showed the least aflatoxin B1 binding strength during the 180 min treatment.