Figure 10.
Photographs of Petri dishes with L. rhamnosus seeded in agar–agar medium with iron ascorbate threoninate (1), iron ascorbate valinate (2), iron ascorbate methioninate (3), iron ascorbate lysinate (4), iron ascorbate leucinate (5), iron ascorbate phenylalaninate (6), iron ascorbate isoleucinate (7), and iron ascorbate tryptophanate (8) at different concentrations: 0.05 mol/L (A), 0.005 mol/L (B), 0.0005 mol/L (C), and 0.00005 mol/L (D).