FIG 1.

Three-dimensional (3D) scatter plot based on parameters of the growth kinetics of fructophilic lactic acid bacteria (FLAB) strains during growth in fructose-yeast extract-polypeptone (FYP) broth incubated anaerobically at 30°C for 24 h (A) and glucose-yeast extract-polypeptone (GYP) broth incubated aerobically under stirring conditions (200 rpm) at 30°C for 24 h (B). Growth kinetics were modeled according to the Gompertz equation as modified by Zwietering et al. (21): y = k + A exp{−exp[(μ_max e/A)(λ − t) + 1]}, where k is the initial level of the dependent variable to be modeled (OD₆₂₀ units), A is the difference in cell density between inoculation and the stationary phase of growth, μ_max is the maximum growth rate (expressed as OD₆₂₀ units per hour), λ is the length of the lag phase (expressed in hours), and t is the time. Strains were categorized into two clusters, I and II, according to the differences in cell density between inoculation and the stationary phase of growth (A).