Influence of water activity on deoxynivalenol accumulation in wheat
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)...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01787888_v15_n1_p24_Comerio |
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todo:paper_01787888_v15_n1_p24_Comerio2023-10-03T15:08:21Z Influence of water activity on deoxynivalenol accumulation in wheat Comerio, R.M. Fernández Pinto, V.E. Vaamonde, G. 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. Fil:Comerio, R.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vaamonde, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01787888_v15_n1_p24_Comerio |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
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. |
| format |
JOUR |
| author |
Comerio, R.M. Fernández Pinto, V.E. Vaamonde, G. |
| spellingShingle |
Comerio, R.M. Fernández Pinto, V.E. Vaamonde, G. Influence of water activity on deoxynivalenol accumulation in wheat |
| author_facet |
Comerio, R.M. Fernández Pinto, V.E. Vaamonde, G. |
| author_sort |
Comerio, R.M. |
| title |
Influence of water activity on deoxynivalenol accumulation in wheat |
| title_short |
Influence of water activity on deoxynivalenol accumulation in wheat |
| title_full |
Influence of water activity on deoxynivalenol accumulation in wheat |
| title_fullStr |
Influence of water activity on deoxynivalenol accumulation in wheat |
| title_full_unstemmed |
Influence of water activity on deoxynivalenol accumulation in wheat |
| title_sort |
influence of water activity on deoxynivalenol accumulation in wheat |
| url |
http://hdl.handle.net/20.500.12110/paper_01787888_v15_n1_p24_Comerio |
| work_keys_str_mv |
AT comeriorm influenceofwateractivityondeoxynivalenolaccumulationinwheat AT fernandezpintove influenceofwateractivityondeoxynivalenolaccumulationinwheat AT vaamondeg influenceofwateractivityondeoxynivalenolaccumulationinwheat |
| _version_ |
1807317908046479360 |