Fig. 1
Effect of lysozyme with and without EDTA (1 mM) on Lactobacillus rhamnosus GG at different pH: a pH 2; b pH 6; c pH 7.5 and d pH 8.5. The results are mean values of three replicates. OD600 of the positive controls: C+(a) = 0.38; C+(b) = 1.36; C+(c) = 1.33;C+(d) = 1.32. (*) indicates a significant difference (P < 0.05) between each test and the positive control (without lysozyme). The lowercase letter a indicates a significant difference (P < 0.05) between each test and its preceding. Error bars represent the SD (standard deviation)