Shiqiong Chen
Beijing Haidian District Products Supervision and Inspection Institute
China
Title: Survey of aflatoxin M1 in commercial milk and dairy products in northern China
Biography
Biography: Shiqiong Chen
Abstract
Aflatoxin M1 (AFM1) contamination in milk and dairy products is a potential risk for human health. From 1st January, 2011 to 30th September, 2015, 3218 milk and dairy products were bought randomly from supermarkets in north part of China. AFM1 in these products was detected by enzyme-linked immunosorbent assay (ELISA), and the positive samples were confirmed by liquid chromatography-tandem mass spectrometry. The results showed that the concentration of aflatoxin M1 in one yogurt sample was 0.80 μg/kg, and that in one raw milk sample was 0.5 μg/kg. Those two products were unqualified for consumption according to GB 2761-2011. These survey results indicated that because the climate in northern China is usually dry, the feedstuff to cattle which had gone mouldy and had been contaminated by Aflatoxin B1 is unusual. So the milk and dairy products contaminated by Aflatoxin M1 is also unusual.