FTIR Metabolomic Fingerprint Reveals Different Modes of Action Exerted by Structural Variants of N-Alkyltropinium Bromide Surfactants on Escherichia coli and Listeria innocua Cells
Figure 2
Stress Indexes of L. innocua cells subjected to the action of N-alkyltropinium bromide structural variants at 0.2, 0.4, 0.6, 0.8 and 1.0 mM.
a.u. stands for “arbitrary units”; triangles represent the whole spectrum, asterisks W1 region, diamonds W2 region, squares W3 region, circles W4 region; dashed line represents mortality. The degree of variability between replicas throughout the FTIR spectra ranged around 2.7*10-2.