کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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743957 | 1462123 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Identification of foodborne pathogens within food matrices by IR spectroscopy Identification of foodborne pathogens within food matrices by IR spectroscopy](/preview/png/743957.png)
Fiber evanescent wave spectroscopy (FEWS) was used to classify various foodborne pathogens (Listeria monocytogenes, Staphylococcus aureus and Salmonella enteritidis) using chemometric methods such as principal component analysis (PCA) and logistic-partial least squares (logistic-PLS). Spectra were recorded thanks to an IR optical fiber made of chalcogenide glasses. A limited segregation between the healthy and non healthy food has been observed using the PCA method, whereas a clear differentiation between bacteria strains was obtained using the PLS regression. FEWS coupled to chemometric methods is a promising technique for the identification of foodborne pathogens as it could provide a rapid identification and classification of the bacteria.
Journal: Sensors and Actuators B: Chemical - Volume 160, Issue 1, 15 December 2011, Pages 202–206