Table 3 The principal component analysis (PCA) results—a noticeable and clear difference of the spectra of viable and devitalised forms—Yes, no/poor distinction of the spectra of viable and devitalised forms—No, the distinction is only partial—Partially

From: The potential of fibre optic UV-Vis-NIR spectroscopy to distinguish vital and devitalised forms of microbial contamination of paper substrates