Mycoflora and multimycotoxin detection in corn silage: experimental study.
Agricultural activities involve the use of crop preservation such as "trench-type" silo, which can sometimes be contaminated by fungi. To investigate the exposure of livestock and farm workers to fungal spores and mycotoxins, a multimycotoxin analysis method has been developed. Six mycotoxins (aflatoxin B1, citrinin, deoxynivalenol, gliotoxin, ochratoxin A, and zearalenone) were quantified by high-performance liquid chromatography coupled to mass spectrometry after solid-phase extraction. An experimental study of fungal species and mycotoxins was conducted in corn silage (Normandy, France) during 9 months of monitoring. The results indicated the recurrence of around 20 different species, with some of them being potentially toxigenic fungi such as Aspergillus fumigatus, Aspergillus parasiticus, Fusarium verticillioides, and Monascus ruber, and the detection of aflatoxin B1 (4-34 ppb), citrinin (4-25 ppb), zearalenone (23-41 ppb), and deoxynivalenol (100-213 ppb). This suggested a possible chronic exposure to low levels of mycotoxins.
Garon
David
D
Groupe Régional d'Etudes sur le Cancer, GRECAN-EA 1772, Université de Caen Basse-Normandie, Centre François Baclesse, B.P. 5026, 14076 Caen Cedex 05, France. d.garon@baclesse.fr
Richard
Estelle
E
Sage
Lucile
L
Bouchart
Valerie
V
Pottier
Didier
D
Lebailly
Pierre
P
D001230:Aspergillus / Q000302:isolation & purification; D001232:Aspergillus fumigatus / Q000302:isolation & purification; D005658:Fungi / Q000302:isolation & purification*; D005670:Fusarium / Q000302:isolation & purification; D032741:Monascus / Q000302:isolation & purification; D009183:Mycotoxins / Q000032:analysis*; D012820:Silage / Q000032:analysis* / Q000382:microbiology*; D003313:Zea mays / Q000737:chemistry / Q000382:microbiology*
D009183:Mycotoxins