Figure 1

Physiochemical characteristics of L. johnsonii FI9785 and mutant strains. (A) Zeta potential as a function of pH (black, pH 3, light grey, pH 7, dark grey, pH 10) in a 10 mM phosphate buffer, (B) Percentage adhesion to hexadecane. Error bars represent standard deviations of triplicates (A, B) for each strain; *, p < 0.05, **, p < 0.01.