Assessment of Aerobic and Respiratory Growth in the Lactobacillus casei Group
Figure 2
Distribution of L. casei (circles), L. paracasei (triangles) and L. rhamnosus (squares) strains on the basis of OD650 nm (OD ratio AE/AN; OD ratio RS/AN) and pH (pH ratio AE/AN; pH ratio RS/AN) ratios.
AN, anaerobiosis; AE, aerobiosis; RS, respiration. Graphs were divided in 4 sections by dashed lines to better represent the strains whose growth was stimulated (OD and pH ratios higher than 1) by aerobiosis (panel A and B, respectively at 16 and 24 h) or respiration (panel C and D, respectively at 16 and 24 h). Black symbols show the strains capable to consume oxygen (measurement with resazurin assay).