FIG 4.

Box plots showing the MICs of p-coumaric, caffeic, syringic, and gallic acids toward fructophilic lactic acid bacteria (FLAB) strains. The final concentrations of the phenolic acids in the sterile 96-well microtiter plates ranged from 45.5 to 0.7 mmol liter⁻¹. Further details are included in Materials and Methods. Analyses were performed in triplicate with three biological replicates for each condition.