Aflatoxin M1 in raw and ultra high temperature-treated milk commercialized in Portugal

Abstract
During June to September 1999, 31 samples of raw milk were obtained from individual farms and 70 samples of ultrahigh-temperature-treated (UHT) milk (18 samples of whole milk, 22 of semi-skimmed and 30 samples of skimmed milk) were collected in supermarkets in Lisbon, Portugal. The total number of samples analysed was 101. The incidence of aflatoxin M1 (AFM1