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. 2019 Apr 24;10:884. doi: 10.3389/fmicb.2019.00884

FIGURE 2.

FIGURE 2

Second-derivative transformation of the FTIR absorbance spectra of the w4 window of the selected Gram-negative strains of Campylobacter (A,B), E. coli (C,D), and S. enterica ssp. enterica (E–G). Averages of the three independent replicate experiments of the controls without the product (0 μg/mL) and the exposures for 90 min to concentrations of BIOCITRO® of half the lowest, the lowest, the highest and twice the highest MBC of each genus are shown.