Use of death conidia of Aspergillus niger aggregate as zearalenone and aflatoxin B1 adsorbent

PEREYRA C M.; CAVAGLIERI L R.; CHIACCHIERA S M.; DALCERO A M.

Mérida, Yucatán, Mexico

Congreso; VI Latin America Congress of Mycotoxicology. II International Symposium on fungal and algal toxins in industry; 2010

Mycotoxins are well-know natural contaminants in foods and feeds. In animal husbandry, the consumption of mycotoxin contaminated diet may induce acute and long term chronic effects resulting in a teratogenic, carcinogenic (mainly for liver and kidney), estrogenic or immunosuppressive impact, in addition, poor feed conversion, diminished body weight gain, increased disease incidence due to immune suppression, and interference with reproductive capacities (Mellor, 2001). One of the most effective methods for controlling mycotoxin hazards in animal husbandry is based on the use of specific materials that adsorb mycotoxins, thus limiting their bioavailability in the body (Miazzo et al. 2005). Conidia of black aspergilli as bioadsorpbents are potentially useful in reducing the toxic effects of mycotoxins in animal production. Physicochemical properties of the surface of conidia make them potential candidates as adsorbents of mycotoxins.