Occurrence of ochratoxin A-producing fungi in commercial corn kernels in Argentina

CARINA MAGNOLI; CAROLINA HALLAK; ANDREA ASTORECA; LORENA PONSONE; STELLA CHIACCHIERA; ANA DALCERO

MYCOPATHOLOGIA

Springer

Año: 2006 vol. 161 p. 53 - 58

0301-486X

  Potentially ochratoxigenic Aspergillus and Penicillium species were identified and the natural occurrence of ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by Aspergillus Aspergillus and Penicillium species were identified and the natural occurrence of ochratoxin A (OTA) in corn kernels was evaluated. Likewise, the capacity to produce OTA by AspergillusAspergillus section Nigri and Circumdati was investigated. A total of 50 corn samples for human consumption was collected in the south of Co´ rdoba Province. The surface-disinfected method for mycobiota determination was used. The OTA detection was performed by HPLC. OTA production was tested in strains belonging to section Nigri and Circumdati. Statistical analysis demonstrated that the specie A. flavus was isolated in higher frequency (p<0.01) from corn kernels in DRBC and DG18 media. The percentage of corn kernels contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus higher frequency (p<0.01) from corn kernels in DRBC and DG18 media. The percentage of corn kernels contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus higher frequency (p<0.01) from corn kernels in DRBC and DG18 media. The percentage of corn kernels contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. niger var. niger was similar in DRBC and DG18 media. The frequency of grains contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and A. japonicus contaminated by A. flavus and A. niger var. awamori was higher than A. niger var. niger and