Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.18/3046
Título: Assessment of mixtures of mycotoxins in breakfast cereals available in Portuguese market
Autor: Martins, Carla
Assunção, Ricardo
Cunha, S.
Jager, A.
Alvito, Paula
Palavras-chave: Segurança Alimentar
Toxicologia
Avaliação de Risco
Saúde Humana
Data: Abr-2015
Resumo: Objective: Mycotoxins are secondary metabolites of fungi that cause toxic and carcinogenic outcomes in humans exposed to them1. Mycotoxins affect several commodities including cereal grains and their finished products, infant formula and baby foods2. This study aimed to determine the incidence and levels of 20 mycotoxins (AFB1, AFB2, AFG1, AFG2, AFM1, OTA, NIV, NEO, DAS, FUS-X, DON, 15-AC-DON, 3-AC-DON, HT-2, T-2, VER, T-2 TETROL, T-2 TRIOL), in breakfast cereals available in the Portuguese market, and compare the results with the maximum limits established by the EU. Methodology: Twenty six breakfast cereal samples, including corn, wheat, oat, rice and multigrain, were collected from supermarkets in Lisbon region and analyzed by HPLC-FLD, LC-MS/MS and GC-MS. Results: Results showed that 88 % breakfast cereals samples were contaminated with mycotoxins (with values above the detection limit), although all samples presented levels below the maximum limits established by the Commission Regulation 1881/20063. OTA and DON were the most commonly detected mycotoxins, with 88% and 73% of samples revealing values above the LOD, respectively. The co-occurrence of different mycotoxins in the same sample was observed in 92 % of the analyzed samples. From these, 46% include mixtures of 3 or 4 mycotoxins. These results are accordingly to those reported by Juan et al (2014)4 and Iqbal et al (2014)5. Conclusions: These results contribute to the increased knowledge on mycotoxin contents in breakfast cereals marketed in Portugal, and they highlight the deep need of further studies to overcome the absence of legislated limits for mycotoxins in breakfast cereals other than DON and FB1 and the absence of legislated limits for mycotoxin mixtures in food. The last issue is particularly important considering the potential synergistic effects that could occur between mycotoxins and its potential impact on human and, mainly, children health.
Peer review: yes
URI: http://hdl.handle.net/10400.18/3046
Aparece nas colecções:DAN - Posters/abstracts em congressos internacionais



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