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Título : Detección de hongos toxigénicos en harinas de maíz precocidas distribuidas en el estado Aragua, Venezuela
Autor : Chavarri, Marleny
Mazzani, Claudio
Luzón, Odalís
Garrido, Mario José
Palabras clave : Hongos
Harina de maíz
Micotoxinas
flatoxinas
Fecha de publicación : 9-Jun-2014
Resumen : Abstract: With the purpose of detecting presence of fungi and aflatoxins in pre-cooked corn flour in Aragua State, Venezuela, we sampled four commercial presentations during five weeks. Quantification of fungi was done by the plate incorporation counting method, using malt extract agar and incubation during 8 days at 27 ± 3oC. Aflatoxin determination was done by the ELISA test. The assay was conducted under a completely random design and all results were submitted to the Kruskal-Wallis non parametric statistical test, as well as to non parametric means tests. Fungi counts varied between 1.79 and 4.7 x 10 CFU of fungi/g of sample, indicating that they were under the level established by the COVENIN Guideline 1337-90 of 104 CFU/g of flour. The fungal species identified were Aspergillus spp., A. flavus, A. niger, A. terreus, and Penicillium spp. The aflatoxin content complied with the tolerance level allowed for corn (20 ng/g)
Descripción : Se detectaron especies fúngicas toxipénicas en las muestras analizadas.
URI : http://saber.ucv.ve/jspui/handle/123456789/6545
ISSN : 1317-973X
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