Contaminação por aflatoxinas em híbridos de milho cultivados em três regiões do estado de Goiás
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Data
2008-06
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Editor
João Batista Duarte
Resumo
The natural occurrence of aflatoxins B1 (AFB1), B2
(AFB2), G1(AFG1), and G2 (AFG2) in corn grains was evaluated
in three locations of Goiás State (Jataí, Montividiu and Goiânia),
from twelve grain samples of hybrids (DAS766, DAS657, 30K75,
30F44, 30P70, 30F33, AG7000, DKB350, AG1051, Strike,
Speed and Fort). The aflatoxins were analyzed by high
performance liquid chromatography (HPLC). The results were
related to the temperature and rainfall data from each region, and
to the presence of fungi and rotten ears in the samples. The
lowest percentage of rotten ears occurred in Goiânia, with a
significant difference among the hybrids. The pathological analysis
of the seeds was determined by the "Blotter" test. The Aspergillus
spp. was present in all the samples from Jataí, in 41.7% of the
samples from Goiânia, and a single sample from Montividiu.
The aflatoxin contamination was higher in the samples from Jataí,
followed by Goiânia and Montividiu, respectively. In Jataí, that
result was correlated with higher rainfall levels during harvest.
The levels of AFB1 ranged between "not detected" (nd) and
277.8 µg.kg-1; 0.7 µg.kg-1, and 14 µg.kg-1, for AFB2; and between
nd and 34.1 µg.kg-1, for AFG2. The AFG1 was not detected in
any of the samples.
Descrição
Palavras-chave
Grãos ardidos, Aspergillus spp., Aflatoxinas, Milho, CLAE, Rotten ear, Aspergillus spp., Aflatoxin, Maize, HPLC
Citação
RAMOS, Cristiane Regina Bueno Aguirre; BRASIL, Edward Madureira; GERALDINE, Robson Maia. Contaminação por aflatoxinas em híbridos de milho cultivados em três regiões do estado de Goiás. Pesquisa Agropecuária Tropical, Goiânia, v. 38, n. 2, p. 95-102, abr./jun. 2008. Disponível em: <https://www.revistas.ufg.br/pat/article/view/4157>.