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Food Chem ; 344: 128615, 2021 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-33223289

RESUMO

Maize (Zea mays L.) is one of the most versatile crops worldwide with high socioeconomic relevance. However, mycotoxins produced by pathogenic fungi are of constant concern in maize production, as they pose serious risks to human and animal health. Thus, the search for rapid detection and/or identification methods for mycotoxins and mycotoxin-producing fungi for application in food safety remain important. In this work, we implemented use of near infrared hyperspectral images (HSI-NIR) combined with pattern recognition analysis, partial-least-squares discriminant analysis (PLS-DA) of images, to develop a rapid method for identification of Fusarium verticillioides and F. graminearum. Validation of the HSI-NIR method and subsequent analysis was realized using 15 Fusarium spp. isolates. The method was efficient as a rapid, non-invasive, and non-destructive assessment was achieved with 100% accuracy, sensitivity, and specificity for both fungi.


Assuntos
Fusarium/química , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Zea mays/microbiologia , Análise Discriminante , Fusarium/isolamento & purificação , Humanos , Processamento de Imagem Assistida por Computador , Análise dos Mínimos Quadrados , Análise Multivariada , Análise de Componente Principal
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