Abstract Title:

Effect of industrial processing on the distribution of aflatoxins and zearalenone in corn-milling fractions.

Abstract Source:

J Agric Food Chem. 2006 Jul 12 ;54(14):5014-9. PMID: 16819910

Abstract Author(s):

Carlo Brera, Carla Catano, Barbara de Santis, Francesca Debegnach, Marzia de Giacomo, Elena Pannunzi, Marina Miraglia

Article Affiliation:

GMO and Mycotoxins Unit, National Centre for Food Quality and Risk Assessment, Italian National Institute of Health (ISS), Viale Regina Elena, 299-00161 Rome, Italy. carlo.brera@iss.it


The aim of this study was to investigate the distribution of aflatoxins and zearalenone levels in various corn-milling fractions. Corn kernels and six derived milling fractions (germ, bran, large and small grits, flour, and animal feed flour) were sampled in an industrial plant; both conventional and organic corns were sampled. To evaluate the effect of cooking, samples of polenta were prepared starting from naturally contaminated flour. Conventional and organic lots showed mycotoxin contamination. For both lots, germ, bran, and animal feed flour showed a marked concentration factor from 239 to 911% accounting for both the low yields of the derived products and the distribution of aflatoxins and zearalenone contamination in the outer parts of the kernels. Conversely, a reduction factor of at least four times from raw material to finished products was observed. Polenta samples were unaffected by the cooking process, with levels of contamination similar to those of starting flour.

Study Type : Review

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