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In vitro growth of lactobacilli on galacto-oligosaccharides. Utilization of DP2+ GOS by L. crispatus DC21.1 and L. johnsonii DC22.2 isolates compared with that by Lactobacillus type strains is shown. Anaerobic growth was recorded from OD600 measurements after incubation with basal medium that was subtracted from that obtained by incubation with basal medium plus DP2+ GOS or glucose as a carbon source.
