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Original Articles

Aflatoxin M1 in raw milk from different regions of São Paulo state – Brazil

, , , , , , & show all
Pages 207-214 | Received 13 Mar 2015, Accepted 03 May 2015, Published online: 25 Jun 2015
 

Abstract

A total of 635 raw milk samples from 45 dairy farms, from three regions of São Paulo state – Brazil, were evaluated during 15 months for aflatoxin M1 (AFM1). AFM1 was determined by high performance liquid chromatograph with fluorescence detection. AFM1 was detected (>0.003 µg kg−1) in 72.9%, 56.3% and 27.5% of the samples from Bauru, Araçatuba and Vale do Paraíba regions, respectively. The mean AFM1 contamination considering all the samples was 0.021 µg kg−1. Furthermore, the concentration of AFM1 was quite different among Bauru (0.038 µg kg−1), Araçatuba (0.017 µg kg−1) and Vale do Paraíba (<0.01 µg kg−1) regions. Only three samples (0.5%) had higher contamination than the tolerated limit in Brazil (0.50 µg kg−1) and 64 samples (10.1%) had a higher contamination than the maximum limit as set by the European Union (0.050 µg kg−1). The estimated AFM1 daily intake was 0.358 and 0.120 ng kg−1 body weight per day for children and adults, respectively.

Acknowledgements

The authors are thankful to the Coordination of Improvement of Higher Education – Ministry of Education of Brasil-CAPES for the master’s scholarship.

Additional information

Funding

This work was supported by the São Paulo Research Foundation – FAPESP [grant# 2008/57182-5, grant #2009/06229-4 and grant # 2012/17683-0].

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