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| Piedade,Fabiana Segatti; Fonseca,Homero; Gloria,Eduardo Micotti da; Calori-Domingues,Maria Antonia; Piedade,Sônia Maria Stefano; Barbin,Décio. |
| The aflatoxin distribution in corn fractions obtained after visual segregation for defects in 30 samples, known to be contaminated, was studied. Each sample was passed through a 5.0 mm round holes sieve, graded for defects and then segregated in sound kernels (regular kernels) and non-sound kernels (injured, germinated, fermented, moldy, heated, insect damaged, immature, broken, hollow, fermented up to ¼, discolored, extraneous materials, and injured by other causes), as defined by the Brazilian Official Grading rules for corn. The non-sound kernels showed the highest contamination levels in all samples. The contamination levels of non-sound kernels (20% of total weight) ranged from 23 to 1,365 µg/kg of aflatoxins (B1, B2, G1 and G2) and were higher than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxins; Corn; Contamination distribution; Visual segregation; Fraction. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300013 |
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| Piedade,Fabiana S.; Fonseca,Homero; Glória,Eduardo M.; Calori-Domingues,Antonia; Piedade,Sônia M.S.; Barbin,Décio. |
| The efficiency of segregation, by particle size, in reducing the aflatoxin content of corn lots under the Brazilian conditions was studied. The aflatoxin content, in the corn fractions obtained after sieving thirty contaminated samples, with approximately 3.0 kg each, was determined. The samples were passed through 4.5 mm round-hole sieves and the fractions with particles ³4.5 mm (fraction A) and <4.5 mm (fraction B) and then analyzed for aflatoxins by TLC. The results showed that the distribution of the aflatoxins among the fractions A and B varied from sample to sample. However, the fraction B presented higher content (6 to 1,422 µg/kg) of aflatoxins (P<5%), than samples of fraction A (4 to 389 µg/kg). In spite of that the segregation of this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Corn; Contamination distribution; Segregation; Fractions. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100002 |
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