Abstract：
:A survey of the natural occurrence of deoxynivalenol (DON) in barley harvested in Uruguay from 1996 to 2002 was conducted. A total of 292 samples were analyzed for DON by an immunochemical method using inmunoaffinity columns and fluorimetric detection. Between 26 and 100% of the samples were positive for DON while mean DON contents varied between the quantification limit (500 mug/kg) to 6349 mug/kg. Annual maximum levels in individual samples ranged from 1900 mug/kg to 10,000 mug/kg. The mean DON contents were similar from 1996 to 1999 increasing markedly from 2000 to 2002. The percentage of the samples with DON were highest in 1997, 2000, 2001 and 2002 (67, 90, 100 and 100%) as was the accumulated precipitation during the flowering period. A positive correlation between DON levels and precipitation was seen. These results suggest that monitoring for DON barley crops, particularly in years with heavy rainfall during the flowering period, must be regularly performed.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Pan D,Bonsignore F,Rivas F,Perera G,Bettucci Ldoi
10.1016/j.ijfoodmicro.2006.08.006subject
Has Abstractpub_date
2007-03-10 00:00:00pages
149-52issue
2eissn
0168-1605issn
1879-3460pii
S0168-1605(06)00478-8journal_volume
114pub_type
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