Optical Fiber-Based Steady State and Fluorescence Lifetime Spectroscopy for Rapid Identification and Classification of Bacterial Pathogens Directly from Colonies on Agar Plates

Table 3

Percentage of correct classification according to the confusion matrix resulting from PCA analysis performed on tryptophan and NADH emission spectra collected from S. aureus, P. aeruginosa, S. typhi, and K. pneumonia.

Fluorophore	Index of good classification according to the confusion matrix resulting from PCA
	Original (%)	Cross-validated
Tryptophan	96.2	96.2
NADH	100	98.1