Aflatoxin B1 adsorption by yeast isolated from dog food and faeces.

FERNANDEZ JURI M. G.,; MUZZOLÓN J.,; DALCERO A.,; MAGNOLI C.E,

Mérida, Yucatán, México

Congreso; VI Latin American Congress of Mycotoxicology and II International Symposium on Fungal and Algal Toxins in Industry.; 2010

Aflatoxins, especially AFB1, are a group of carcinogenic mycotoxins causing various acute and chronic intoxications in humans and animals and can occur in several foods and feeds. They are produced by Aspergillus section Flavi species. Its effects in dogs include liver cancer. Anorexia and depression are the most common symptoms (Leung, 2006). In the recent years, many strategies for prevention and detoxification involving microorganisms have been under investigation. Organic compounds such as several yeasts (S. cerevisiae among others) and bacterial cell walls have been studied for their ability to complex with several mycotoxins without harming the environment or reducing the bioavailability of certain nutrients. It is well known that yeast cell wall can bind AFB1 (Bueno et al., Shetty et al., 2007) due its surface structure; in other hand it represents a nutritional additive in animal feed.