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Growth of pure cultures of bifidobacterial strains. (A) Population levels of pure cultures of bifidobacterial strains representing four species in basal medium containing GOS and FOS (both at 0.2%, wt/vol) incubated anaerobically for 8 h at 37°C. Values are means and standard errors of triplicate cultures. (B) Optical densities of pure cultures as described for panel A. Means and standard errors of A600 measurements of triplicate cultures are shown.
