Occurrence of fungi and mycotoxins in corn silage, Jalisco State, Mexico.
The aim of this study was to evaluate the chemical composition, mold count and mycotoxin contamination of corn silage collected during a six month-period. The results indicated that the chemical composition and the physicochemical parameters evaluated did not show significant variation during the sampling time. Fungal count on RBC ranged from 1.7 x 10(3) to 9 x 10e8 CFU/g. Mucor, Penicillium and Aspergillus spp. were the most frequent fungal species in the corn silage. Fusarium count ranged from 1.6 x 10(3) to 1.6 x 10e8 CFU/g in Nash Snyder culture media. Aflatoxin B, fumonisins, ochratoxin A, ochratoxin B, deoxynivalenol, and zearalenone were detected throughout the period of corn silage maintenance (100% positive samples). However, only deoxynivalenol levels were higher than the maximum limit recommended by the FDA.
Reyes-Velázquez
Waldina Patricia
WP
Laboratorio de Micotoxicología (Departamento de Salud Pública), Centro Universitario de Ciencias Biológicas y Agropecuarias (CUCBA), Universidad de Guadalajara (UDG), Jalisco, México. waldinar@cucba.udg.mx
Isaías Espinoza
Victor Hugo
VH
Rojo
Federico
F
Jiménez-Plasencia
Cecilia
C
de Lucas Palacios
Ernesto
E
Hernández-Góbora
Jorge
J
Ramírez-Alvarez
Agustín
A
D009183:Mycotoxins / Q000032:analysis*; D012820:Silage / Q000032:analysis* / Q000382:microbiology*; D003313:Zea mays / Q000737:chemistry* / Q000382:microbiology*
D009183:Mycotoxins