| Autor: |
Abreu DCP; Chemistry Department, Federal University of Lavras, Lavras, MG, Brazil., Vargas EA; Laboratory of Quality Control and Food Safety, National Agricultural Laboratory of Minas Gerais, Belo Horizonte, MG, Brazil., Oliveira FADS; Laboratory of Quality Control and Food Safety, National Agricultural Laboratory of Minas Gerais, Belo Horizonte, MG, Brazil., Uetanabaro APT; Department of Biology, Santa Cruz State University, Ilhéus, BA, Brazil., Pires PN; Department of Biology, Santa Cruz State University, Ilhéus, BA, Brazil., Bazzana MJF; Chemistry Department, Federal University of Lavras, Lavras, MG, Brazil., Saczk AA; Chemistry Department, Federal University of Lavras, Lavras, MG, Brazil. |
| Abstrakt: |
In this study, 135 samples of cocoa beans collected in the Amazon and Atlantic Forest regions of Brazil were analysed to evaluate the possible co-occurrence of 34 mycotoxins. The results indicate that 42% of the cocoa samples exhibited quantifiable levels for 11 mycotoxins: aflatoxins (AFs) B 1 , B 2 and G 1 ; ochratoxin A; citrinin; cyclopiazonic acid; tenuazonic acid; paxilline; sterigmatocystin; zearalenone and fumonisin B 2 . Of the samples, 18% exhibited the co-occurrence of up to six mycotoxins. No toxins belonging to the groups of trichothecenes or ergot alkaloids were detected. Contingency analysis of the incidence of mycotoxins did not show significant differences between the two regions evaluated. Seven samples were contaminated with AFs, while only one contained ochratoxin A above 10 μg kg -1 . The accuracy of the method was evaluated by proficiency testing for ochratoxin A, where satisfactory Z -scores were obtained. |
