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Abstract:

The influence of water activity (aw) on deoxynivalenol accumulation in wheat at 25°C was studied. Gnotobiotic grains were conditioned at different aw levels, inoculated with a toxigenic Fusarium graminearum strain, and incubated for ten weeks. The highest accumulation of deoxynivalenol (1130 μg/kg) was detected at aw 0.980. At aw 0.945 and 0.925 the maximum quantities of toxin accumulated were 113 μg/kg and 93 μg/kg respectively. Deoxynivalenol was not detected in the substrate at aw 0.900. Results suggest that intermediate aw levels (0.97-0.92) are particularly critical at post harvest time because those are conditions under which deoxynivalenol production is most likely to be initiated naturally.

Registro:

Documento: Artículo
Título:Influence of water activity on deoxynivalenol accumulation in wheat
Autor:Comerio, R.M.; Fernández Pinto, V.E.; Vaamonde, G.
Filiación:Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Piso 3, 1428-Buenos Aires, Argentina
Año:1999
Volumen:15
Número:1
Página de inicio:24
Página de fin:32
DOI: http://dx.doi.org/10.1007/BF02945211
Título revista:Mycotoxin Research
Título revista abreviado:Mycotoxin Res.
ISSN:01787888
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01787888_v15_n1_p24_Comerio

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Citas:

---------- APA ----------
Comerio, R.M., Fernández Pinto, V.E. & Vaamonde, G. (1999) . Influence of water activity on deoxynivalenol accumulation in wheat. Mycotoxin Research, 15(1), 24-32.
http://dx.doi.org/10.1007/BF02945211
---------- CHICAGO ----------
Comerio, R.M., Fernández Pinto, V.E., Vaamonde, G. "Influence of water activity on deoxynivalenol accumulation in wheat" . Mycotoxin Research 15, no. 1 (1999) : 24-32.
http://dx.doi.org/10.1007/BF02945211
---------- MLA ----------
Comerio, R.M., Fernández Pinto, V.E., Vaamonde, G. "Influence of water activity on deoxynivalenol accumulation in wheat" . Mycotoxin Research, vol. 15, no. 1, 1999, pp. 24-32.
http://dx.doi.org/10.1007/BF02945211
---------- VANCOUVER ----------
Comerio, R.M., Fernández Pinto, V.E., Vaamonde, G. Influence of water activity on deoxynivalenol accumulation in wheat. Mycotoxin Res. 1999;15(1):24-32.
http://dx.doi.org/10.1007/BF02945211