Aflatoxin M 1 occurrence in ultra high temperature (UHT) treated fluid milk from Minas Gerais/Brazil

Abstract

Aflatoxin M1 (AFM1) was determined in 75 samples of ultra-high-temperature (UHT)-treated fluid commercial milk from Minas Gerais, Brazil, from July to November 2009. AFM1 determinations were carried out by HPLC. Results showed that 23 (30.7%) positive samples for AFM1 at levels of 1000–4100 ng L^−1, which were above the tolerance limit for AFM1 in milk as adopted by Brazilian regulations. It was concluded that the incidence of AFM1 in milk marketed in Minas Gerais state is higher, warrants concern about AFM1 in milk and milk products.